Search

Your search keyword '"D. C. Braddock"' showing total 11 results
Start Over Author "D. C. Braddock"
11 results on '"D. C. Braddock"'

2. ChemInform Abstract: Nucleophilic Substitution of (Alkoxymethylene)dimethylammonium Chloride with Potassium Phthalimide; a Convenient Procedure for the Synthesis of Imides with Inversion of Configuration

Author

Anthony G. M. Barrett, Rachel James, Panayiotis Alexandrou Procopiou, and D. C. Braddock

Subjects
chemistry.chemical_compound, Chemistry, Computational chemistry, Nucleophilic substitution, Dimethylammonium chloride, General Medicine, Potassium phthalimide, Inversion (discrete mathematics)
Published
2010
Full Text
View/download PDF

4. ChemInform Abstract: Diastereoselective Conjugate Addition to (+)-Camphorsulfonic Acid Derived Nitroalkenes: Synthesis of α-Hydroxy and α-Amino Acids

Author

A. G. M. Barrett, and Andrew J. P. White, D. C. Braddock, David J. Williams, P. W. N. Christian, and D. Pilipauskas

Subjects
Terpene, chemistry.chemical_classification, chemistry.chemical_compound, chemistry, Stereochemistry, Camphorsulfonic acid, Organic chemistry, General Medicine, Conjugate, Amino acid
Published
2010
Full Text
View/download PDF

9. Diastereoselective Conjugate Addition to (+)-Camphorsulfonic Acid Derived Nitroalkenes: Synthesis of alpha-Hydroxy and alpha-Amino Acids

Author

P. W. N. Christian, D. Pilipauskas, D. J. Williams, A. J. P. White, Anthony G. M. Barrett, and D. C. Braddock

Subjects
chemistry.chemical_classification, chemistry.chemical_compound, Ozonolysis, chemistry, Nucleophile, Stereochemistry, Camphorsulfonic acid, Organic Chemistry, Michael reaction, Thiol, Selectivity, Amino acid, Conjugate
Abstract

Diastereoselective tandem conjugate addition of both oxygen- and nitrogen-centered nucleophiles to the novel (1S)-10-camphorsulfonic acid derived nitroalkenes 9, 10, and 11 and ozonolysis gave the alpha-hydroxy and alpha-amino thiol acid derivatives 12, 13, and 14. In all cases, the (R)-diastereomer was formed as the major component albeit with only modest levels of selectivity (33-71% de). The structures of the products and the stereochemistry of the Michael addition step were unequivocally established by X-ray crystallographic studies of nitroalkenes 9 and 10 and (2S)-12c and (2R)-13a and by alternative syntheses from (S)-alanine, (S)-valine, and ethyl (S)-lactate.

Published
2001

10. New catalysts for old reactions

Author

A. G. M. Barrent, M. Lancaster, D. C. Braddock, Dorai Ramprasad, W. Hoyle, and Francis Joseph Waller

Subjects
Chemistry, Organic chemistry, Nanotechnology, Catalysis
Published
2001
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results