Search

Your search keyword '"BURNS, ALEXANDER"' showing total 1,759 results
Start Over Author "BURNS, ALEXANDER"
1,759 results on '"BURNS, ALEXANDER"'

6. Catalytic Enantioselective Allylations of Acetylenic Aldehydes via 2‑Propanol-Mediated Reductive Coupling

Author

Brito, Gilmar A, Della-Felice, Franco, Luo, Guoshun, Burns, Alexander S, Pilli, Ronaldo A, Rychnovsky, Scott D, and Krische, Michael J

Subjects
Chemical Sciences, Organic Chemistry
Abstract

Cyclometalated π-allyliridium C,O-benzoates modified by ( S)-SEGPHOS or ( S)-Cl,OMe-BIPHEP catalyze enantioselective 2-propanol-mediated reductive couplings of diverse nonmetallic allyl pronucleophiles with the acetylenic aldehyde TIPSC≡CCHO. Absolute stereochemistries of the resulting secondary homoallylic-propargylic alcohols were assigned using Rychnovsky's competing enantioselective conversion method.

Published
2018

7. Determination of the Absolute Configuration of β‑Chiral Primary Alcohols Using the Competing Enantioselective Conversion Method

Author

Burns, Alexander S, Wagner, Alexander J, Fulton, Jennifer L, Young, Kyle, Zakarian, Armen, and Rychnovsky, Scott D

Subjects
Rare Diseases, Acylation, Alcohols, Catalysis, Molecular Structure, Stereoisomerism, Chemical Sciences, Organic Chemistry
Abstract

A method for determining the absolute configuration of β-chiral primary alcohols has been developed. Enantioenriched alcohols were acylated in the presence of either enantiomer of the enantioselective acylation catalyst HBTM, and the faster reaction was determined by measuring product conversion using 1H NMR spectroscopic analysis. An empirical mnemonic was developed that correlates the absolute configuration of the alcohol to the faster reacting catalyst. Successful substrates for this method include primary alcohols that bear a "directing group" on the stereogenic center; directing groups include arenes, heteroarenes, enones, and halides.

Published
2017

10. Multi-centre randomised controlled trial comparing arthroscopic hip surgery to physiotherapist-led care for femoroacetabular impingement (FAI) syndrome on hip cartilage metabolism: the Australian FASHIoN trial

Author

Hunter, David J., Eyles, Jillian, Murphy, Nicholas J., Spiers, Libby, Burns, Alexander, Davidson, Emily, Dickenson, Edward, Fary, Camdon, Foster, Nadine E., Fripp, Jurgen, Griffin, Damian R., Hall, Michelle, Kim, Young Jo, Linklater, James M., Molnar, Robert, Neubert, Ales, O’Connell, Rachel L., O’Donnell, John, O’Sullivan, Michael, Randhawa, Sunny, Reichenbach, Stephan, Schmaranzer, Florian, Singh, Parminder, Tran, Phong, Wilson, David, Zhang, Honglin, and Bennell, Kim L.

Published
2021
Full Text
View/download PDF

11. Electrolytic Salt Splitting for Sulfuric Acid and Caustic Recovery: Can It Be Cost-Effective?

Author

Burns, Alexander, Brereton, Clive, Davis, Boyd R., editor, Moats, Michael S., editor, Wang, Shijie, editor, Gregurek, Dean, editor, Kapusta, Joël, editor, Battle, Thomas P., editor, Schlesinger, Mark E., editor, Alvear Flores, Gerardo Raul, editor, Jak, Evgueni, editor, Goodall, Graeme, editor, Free, Michael L., editor, Asselin, Edouard, editor, Chagnes, Alexandre, editor, Dreisinger, David, editor, Jeffrey, Matthew, editor, Lee, Jaeheon, editor, Miller, Graeme, editor, Petersen, Jochen, editor, Ciminelli, Virginia S. T., editor, Xu, Qian, editor, Molnar, Ronald, editor, Adams, Jeff, editor, Liu, Wenying, editor, Verbaan, Niels, editor, Goode, John, editor, London, Ian M., editor, Azimi, Gisele, editor, Forstner, Alex, editor, Kappes, Ronel, editor, and Bhambhani, Tarun, editor

Published
2018
Full Text
View/download PDF

14. Determination of the Absolute Configuration of β-Chiral Primary Alcohols Using the Competing Enantioselective Conversion Method Heteroatom-Directed Acylation of Secondary Alcohols to Assign Absolute Configuration Total Synthesis of Illisimonin A Osmate Esters are Crystalline Derivatives of Alkenes

Author

Burns, Alexander Sunshine

Subjects
Organic chemistry, CEC, illisimonin, neurotrophic, osmate
Abstract

The first chapter details the development of a method for determining the absolute configuration of β-chiral primary alcohols that bear a π or heteroatom substituent on the stereocenter. The method relies on the rate differences of acylation using Birman’s homobenzotetramisole acylation catalyst. An empirical relationship between the faster reacting catalyst system and absolute configuration of the substrate was developed. The method is applicable to primary carbinols appended to tertiary stereocenters that bear a directing group; directing groups include arenes, heteroarenes, enones, and halides.The second chapter details the extension of the competing enantioselective conversion method to assign the absolute configuration of secondary alcohols bearing electron-withdrawing groups such as halides and other heteroatoms. The level of selectivity is modest to good and is sufficient for determining configuration. A mathematical analysis identifies conditions for achieving maximum differences in conversion and, consequently, assigning configuration with greater confidence. The new method is effective for halohydrins and secondary−tertiary 1,2-diols and was used to confirm the configuration of two inoterpene natural products.The third chapter details the completion of the first synthesis of (±)-illisimonin A. Notable steps in the route include a 1,3-dioxa-2-silacyclohexene templated Diels–Alder cycloaddition and type-3 semipinacol rearrangement to generate the trans-pentalene. The final step is an iron-catalyzed C-H oxidation. The synthetic route is robust, with 94 mg of racemic material prepared in a single pass. Classical resolution of a late stage intermediate enabled the synthesis of natural (–)-illisimonin A. The absolute configuration of (–)-illisimonin A was revised to 1S,4S,5S,6S,7R,9R,10R based on the X-ray structure of an heavy-atom analogue. The fourth chapter details the use of osmium tetroxide and TMEDA to form stable crystalline adducts with alkenes. Osmate derivatization converted many liquid alkenes into solid crystalline compounds, enabling structure determination through X-ray analysis. Osmium, a heavy atom, facilitates the crystallographic analysis and the determination of the absolute configuration using common Mo X-ray sources. The utility of this method for assigning structures and absolute configurations was demonstrated on a number of unsaturated substrates that include simple alkenes, enones, enol ethers, and silyl enol ethers.

Published
2020

16. Democrats Laboring to Retain Crucial Asian American Votes

Author

Burns, Alexander

Subjects
Asian Americans -- Political aspects, Gun control -- Influence, Market trend/market analysis, General interest, News, opinion and commentary, Democratic Party (United States) -- Forecasts and trends
Abstract

The party confronts a mood of frustration among the rising electoral force that helped vault it to power. The campaign in Georgia will test that bond. JOHNS CREEK, Ga. -- [...]

Published
2022

17. States With Abortion Bans Risk Losing Their Economic Edge

Author

Burns, Alexander

Subjects
Governors, Abortion, General interest, Roe v. Wade 410 U.S. 113 (1973)
Abstract

Byline: Alexander Burns The Supreme Court's decision to overturn Roe v. Wade has prompted Democratic governors to pitch their states as better alternatives for business. As a group of conservative [...]

Published
2022

18. States That Ban Abortion Risk Losing Business

Author

Burns, Alexander

Subjects
United States. Supreme Court -- Cases, Economic aspects, Political aspects, Cases, Laws, regulations and rules, Company legal issue, Government regulation, Reproductive rights -- Political aspects, State laws -- Economic aspects -- Political aspects, Abortion services -- Laws, regulations and rules -- Political aspects, Abortion -- Laws, regulations and rules, Roe v. Wade 410 U.S. 113 (1973)
Abstract

The Supreme Court's decision to overturn Roe v. Wade has prompted Democratic governors to pitch their states as better alternatives for business. As a group of conservative states enacted severe [...]

Published
2022

19. Democrats Face Pressure on Crime From a New Front: Their Base

Author

Burns, Alexander

Subjects
Political parties -- Liberia, Gubernatorial candidates -- Political activity -- Political aspects, Violence -- Political aspects, State government -- Political aspects, General interest
Abstract

Byline: Alexander Burns Not long ago, the party was focused on police reform, but rising fears of violence, especially among communities of color, have led candidates to change course. BALTIMORE [...]

Published
2022

20. Democrats Are Feeling The Pressure on Crime From Their Own Base

Author

Burns, Alexander

Subjects
Violent crimes -- Forecasts and trends -- Political aspects, Law enforcement -- Political aspects, Market trend/market analysis, General interest, News, opinion and commentary, Democratic Party (United States) -- Political activity
Abstract

Not long ago, the party was focused on police reform, but rising fears of violence, especially among communities of color, have led candidates to change course. BALTIMORE -- A crowd [...]

Published
2022

21. Moderators, Mediators, and Prognostic Indicators of Treatment With Hip Arthroscopy or Physical Therapy for Femoroacetabular Impingement Syndrome: Secondary Analyses From the Australian FASHIoN Trial

Author

Murphy, Nicholas J., primary, Eyles, Jillian, additional, Spiers, Libby, additional, Davidson, Emily, additional, Kim, Young Jo, additional, Linklater, James M., additional, Afacan, Onur, additional, Bennell, Kim L., additional, Burns, Alexander, additional, Diamond, Laura E., additional, Dickenson, Edward, additional, Fary, Camdon, additional, Foster, Nadine E., additional, Fripp, Jurgen, additional, Grieve, Stuart M., additional, Griffin, Damian R., additional, Heller, Gillian, additional, Molnar, Robert, additional, Neubert, Ales, additional, O’Donnell, John, additional, O’Sullivan, Michael, additional, Randhawa, Sunny, additional, Reichenbach, Stephan, additional, Singh, Parminder, additional, Tran, Phong, additional, and Hunter, David J., additional

Published
2022
Full Text
View/download PDF

23. How Overturning Roe Could Backfire for Republicans

Author

King, Maya, Burns, Alexander, Simmons, Dan, and Hooper, Ryan Patrick

Subjects
Political parties -- Wisconsin -- Michigan, Abortion -- Political aspects, General interest
Abstract

Byline: Maya King, Alexander Burns, Dan Simmons and Ryan Patrick Hooper The party was making headway with suburban women on crime, schools and inflation. Now the abortion debate is front [...]

Published
2022

24. Effects of Roe On Midterms Worry G.O.P

Author

King, Maya, Burns, Alexander, Simmons, Dan, and Hooper, Ryan Patrick

Subjects
Abortion -- Laws, regulations and rules -- Political aspects -- Public opinion, Government regulation, General interest, News, opinion and commentary, Roe v. Wade 410 U.S. 113 (1973), Republican Party (United States) -- Public opinion
Abstract

The party was making headway with suburban women on crime, schools and inflation. Now the abortion debate is front and center. ATLANTA -- For months, Republicans have been poised to [...]

Published
2022

25. Biden Was Warned Immigration and Inflation Would Hurt Polls

Author

Kanno-Youngs, Zolan, Martin, Jonathan, and Burns, Alexander

Subjects
Democratic Party (United States) -- Political activity, Republican Party (United States) -- Political activity, Political activity, Economic policy, Political aspects, Social policy, Inflation (Economics) -- Political aspects -- United States, Emigration and immigration -- Political aspects, President of the United States -- Economic policy -- Social policy, Inflation (Finance) -- Political aspects -- United States
Abstract

Confidential polling data obtained by The New York Times underscores the biggest challenges for President Biden and his party as they face the prospect of losing power to Republicans on [...]

Published
2022

26. McCarthy Feared G.O.P. Lawmakers Put 'People in Jeopardy' After Jan. 6

Author

Burns, Alexander and Martin, Jonathan

Subjects
Political parties -- Safety and security measures, Legislators -- Political activity -- Political aspects -- Safety and security measures, Violence -- Safety and security measures -- Political aspects, General interest
Abstract

Byline: Alexander Burns and Jonathan Martin New audio recordings reveal Kevin McCarthy worried that comments by his far-right colleagues could incite violence. He said he would try to rein in [...]

Published
2022

27. McCarthy Raised Alarm About G.O.P. Colleagues

Author

Burns, Alexander and Martin, Jonathan

Subjects
U.S. Capitol Insurrection, 2021 -- Records and correspondence -- Investigations, Legislators -- Records and correspondence -- Beliefs, opinions and attitudes, Incitement (Criminal law) -- Records and correspondence, Riots -- Records and correspondence -- Investigations, Company legal issue, General interest, News, opinion and commentary, Republican Party (United States) -- Officials and employees
Abstract

New audio recordings reveal Kevin McCarthy worried that comments by his far-right colleagues could incite violence. He said he would try to rein in the lawmakers, but has instead defended [...]

Published
2022

28. If Biden's Plan Is Like a 'New Deal,' Why Don't Voters Care?

Author

Burns, Alexander

Subjects
Americans, Community colleges, Child care, General interest
Abstract

Byline: Alexander Burns RICHMOND, Va. - As Chris Frelke surveyed the Thomas B. Smith Community Center, he conceded that the beige-and-green cinder block structure was not much to look at. [...]

Published
2022

29. 'I've Had It With This Guy': G.O.P. Leaders Privately Blasted Trump After Jan. 6

Author

Burns, Alexander and Martin, Jonathan

Subjects
Political parties, Company business planning, General interest
Abstract

Byline: Alexander Burns and Jonathan Martin In the days after the attack, Representative Kevin McCarthy planned to tell Mr. Trump to resign. Senator Mitch McConnell told allies impeachment was warranted. [...]

Published
2022

30. McCarthy Said Trump Took On Blame for Riot

Author

Martin, Jonathan, Burns, Alexander, and Vigdor, Neil

Subjects
United States. House of Representatives. Select Committee to Investigate the January 6th Attack on the United States Capitol -- Investigations, New York Times Co. -- Investigations, U.S. Capitol Insurrection, 2021 -- Investigations -- Evidence, Legislators -- Political activity -- Beliefs, opinions and attitudes, Newspaper publishing -- Investigations, Ex-presidents -- Political activity, Company legal issue, General interest, News, opinion and commentary
Abstract

New audio captures what Representative Kevin McCarthy said to Republicans shortly after the Jan. 6 attack on the Capitol. Representative Kevin McCarthy, the House Republican leader, told G.O.P. lawmakers in [...]

Published
2022

31. A 'New Deal' Spent $1.9 Trillion on Aid. Voters Didn't Notice

Author

Burns, Alexander

Subjects
Domestic policy, Access control, Public opinion, Laws, regulations and rules, Government regulation, President of the United States -- Domestic policy -- Public opinion, Domestic economic assistance -- Laws, regulations and rules -- Access control, American Rescue Plan Act of 2021
Abstract

RICHMOND, Va. -- As Chris Frelke surveyed the Thomas B. Smith Community Center, he conceded that the beige-and-green cinder block structure was not much to look at. But Mr. Frelke, [...]

Published
2022

32. How to Pick a Vice President

Author

Burns, Alexander

Subjects
General interest, News, opinion and commentary
Abstract

HOW TO PICK A vice president By Alexander Burns ø Illustration by Jamiel law earlier this year, Democratic voters picked Joseph R. Biden Jr. as their presidential candidate. Now Biden [...]

Published
2020

34. Democrats Are Solidly Behind Biden. There's No Consensus About a Plan

Author

Martin, Jonathan and Burns, Alexander

Subjects
Political parties, Governors -- Political aspects -- Political activity, General interest
Abstract

Byline: Jonathan Martin and Alexander Burns Leaders with White House aspirations all say they'll support the president for another term. But there is no shortage of chatter about the options [...]

Published
2021

35. Democrats Are Fully Behind Biden. There's No Consensus on a Plan

Author

Martin, Jonathan and Burns, Alexander

Subjects
General interest, News, opinion and commentary, Democratic Party (United States) -- Political activity
Abstract

Leaders with White House aspirations all say they'll support the president for another term. But there is no shortage of chatter about the options if he continues to falter. NEW [...]

Published
2021

36. Fresh Air with Terry Gross, May 3, 2022: Interview with Jonathan Martin and Alexander Burns.

Author

Martin, Jonathan, Burns, Alexander, WHYY Public Media, Miller, Danny, Gross, Terry, Martin, Jonathan, Burns, Alexander, WHYY Public Media, Miller, Danny, and Gross, Terry

Abstract

Since its national debut in 1987, Fresh Air with Terry Gross has been a highly acclaimed and much adored weekday magazine among public radio listeners. Each week, nearly 4.8 million people turn to Peabody Award-winning host Terry Gross for insightful conversations with the leading voices in contemporary arts and issues. The renowned program reaches a global audience, with over 620 public radio stations broadcasting Fresh Air, and 3 million podcast downloads each week. Fresh Air has broken the mold of 'talk show' by weaving together superior journalism and intimate storytelling from modern-day intellectuals, politicians and artists alike. Through probing questions and careful research, Gross's interviews are lauded for revealing a fresh perspective on cultural icons and trends. Her thorough conversations are often complemented by commentary from well-known contributors. Fresh Air is produced at WHYY-FM in Philadelphia and broadcast nationally by NPR., (1.) Journalists JONATHAN MARTIN and ALEXANDER BURNS are the authors of the new book This Will Not Pass: Trump, Biden and the Battle for America's Future. It covers the period of two years, from the onset of the coronavirus pandemic through the legislative battles of the new Biden administration. The book was published today, but made news even before publication, because the authors released audio recordings from the days after the attack on the capitol, of House Minority Leader Kevin McCarthy saying he was thinking about asking Trump to resign, and he was concerned that the extremist rhetoric of some Republican lawmakers could end up getting people hurt. MARTIN and BURNS are national correspondents for the New York Times and political analysts for CNN. (THIS INTERVIEW CONTINUES INTO THE SECOND HALF OF THE SHOW).

Published
2022

40. Reeling From Surprise Losses, Democrats Sound the Alarm for 2022

Author

Martin, Jonathan and Burns, Alexander

Subjects
Political parties -- West Virginia -- New Jersey, Electioneering, Legislators -- Political aspects -- Political activity, Political campaigns, General interest
Abstract

Byline: Jonathan Martin and Alexander Burns Party officials say the White House and Congress must do more to address the electorate's deep malaise or risk watching voters lurch back toward [...]

Published
2021

41. Bruised at Polls, Democrats Look at Their Missteps

Author

Martin, Jonathan and Burns, Alexander

Subjects
Elections -- Forecasts and trends, Company public relations, Market trend/market analysis, General interest, News, opinion and commentary, Democratic Party (United States) -- Powers and duties -- Public relations
Abstract

Party officials say the White House and Congress must do more to address the electorate's deep malaise or risk watching voters lurch back toward the G.O.P. by default. WASHINGTON -- [...]

Published
2021

42. Youngkin Ahead in Close Virginia Race

Author

Martin, Jonathan and Burns, Alexander

Subjects
Governors -- Elections, Gubernatorial candidates -- Political activity -- Public relations, Company public relations, Market trend/market analysis, General interest, News, opinion and commentary
Abstract

Mr. Youngkin, a former private equity executive making his first run for office, focused on education and taxes while projecting a suburban-dad image to create distance from former President Trump. [...]

Published
2021

44. The Dramatic End of the Soviet Union: Twenty-two years ago, the Soviet Parliament suspended the Communist Party after the failure of a dramatic coup attempt to remove Gorbachev

Author

Burns, Alexander

Subjects
Communism -- Russia -- Political aspects, Political parties -- Russia, Coups d'etat -- Political aspects, Power (Philosophy), History
Abstract

In the last days of August, 22 years ago, the Soviet Union imploded. The crash began with an abortive attempt to remove Mikhail Gorbachev from power, and it ended with [...]

Published
2019

45. Centrist Democrats See Series of Wins as Gut Check for Left

Author

Burns, Alexander

Subjects
Legislators -- Political activity -- Public relations, Company public relations, General interest, News, opinion and commentary, Democratic Party (United States) -- Powers and duties
Abstract

Progressives are holding their own with moderates in fights over policy. But off-year elections suggest they need a new strategy for critiquing President Biden without seeming disloyal. Nina Turner, the [...]

Published
2021

46. 'Covid With a Vengeance' Consumes U.S. Politics

Author

Burns, Alexander

Subjects
Political parties, Vaccination -- Political aspects, General interest
Abstract

Byline: Alexander Burns Rising case counts and stagnant vaccination rates could prove equally frustrating for President Biden and the G.O.P., making it impossible to shift the public's attention to other [...]

Published
2021

47. As an Issue, Covid Isn't Going Away Soon

Author

Burns, Alexander

Subjects
Control, Distribution, Prevention, Political aspects, Forecasts and trends, Market trend/market analysis, Company distribution practices, SARS-CoV-2 variants -- Distribution, Epidemics -- Control -- Political aspects -- United States, COVID-19 vaccines -- Distribution, Vaccination -- Forecasts and trends, COVID-19 -- Prevention -- Political aspects, Public health administration -- Political aspects
Abstract

Rising case counts and stagnant vaccination rates could prove equally frustrating for President Biden and the G.O.P., making it impossible to shift the public's attention to other priorities. The American [...]

Published
2021

48. Why America's Politics Are Stubbornly Fixed, Despite Momentous Changes

Author

Burns, Alexander

Subjects
Mortality -- Political aspects, Postwar reconstruction -- Political aspects, Coronaviruses -- Political aspects, Ex-presidents -- Political aspects -- Political activity, General interest
Abstract

Byline: Alexander Burns The country is recovering from a pandemic and an economic crisis, and its former president is in legal and financial peril. But no political realignment appears to [...]

Published
2021

49. U.S. Surges, But Politics Hold Firm

Author

Burns, Alexander

Subjects
Economic aspects, Evaluation, Forecasts and trends, Market trend/market analysis, Epidemics -- Economic aspects -- United States, President of the United States -- Evaluation, Economic recovery -- Forecasts and trends, COVID-19 -- Economic aspects, Infrastructure (Economics) -- Forecasts and trends
Abstract

The country is recovering from a pandemic and an economic crisis, and its former president is in legal and financial peril. But no political realignment appears to be at hand. [...]

Published
2021

50. When It Comes to Big City Elections, Republicans Are in the Wilderness

Author

Burns, Alexander and Martin, Jonathan

Subjects
Political parties -- New York -- California, Elections -- Political aspects, Mayors -- Political activity -- Political aspects, General interest, Republican Party (United States) -- Political aspects -- Political activity
Abstract

Byline: Alexander Burns and Jonathan Martin The party's growing irrelevance in urban and suburban areas comes at a considerable cost, sidelining conservatives in centers of innovation and economic might. When [...]

Published
2021

Catalog

Books, media, physical & digital resources
See catalog results