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Your search keyword '"Huittinen, Nina"' showing total 3 results
Start Over Author "Huittinen, Nina" Topic catalysis
3 results on '"Huittinen, Nina"'

1. Cycloisomerization of 2-Alkynylanilines to Indoles Catalyzed by Carbon-Supported Gold Nanoparticles and Subsequent Homocoupling to 3,3′-Biindoles.

Author

Perea‐Buceta, Jesus E., Wirtanen, Tom, Laukkanen, Otto‐Ville, Mäkelä, Mikko K., Nieger, Martin, Melchionna, Michele, Huittinen, Nina, Lopez‐Sanchez, Jose A., and Helaja, Juho

Subjects
CYCLOISOMERIZATION, INDOLE compounds, ORGANIC synthesis, CATALYSIS, CHEMICAL reactions
Abstract

Elevated by the support: 2‐Alkynyl aniline cycloisomerization to indole is catalyzed by cationic Au NPs on a carbon support. Electroneutral and rich 2‐aryl indoles are further converted into 3,3′‐biindoles by oxidative homocoupling that is readily catalyzed by the Au NPs on carbon, and exclusively but also somewhat sluggishly by the carbon support. [ABSTRACT FROM AUTHOR]

Published
2013
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2. Cycloisomerization of 2-alkynylanilines to indoles catalyzed by carbon-supported gold nanoparticles and subsequent homocoupling to 3,3′-biindoles

Author

Michele Melchionna, Otto-Ville Laukkanen, Jose Antonio Lopez-Sanchez, Nina Huittinen, Tom Wirtanen, Martin Nieger, Jesus E. Perea‐Buceta, Juho Helaja, Mikko K. Mäkelä, Perea Buceta, Jesus E., Wirtanen, Tom, Laukkanen, Otto Ville, Mäkelä, Mikko K., Nieger, Martin, Melchionna, Michele, Huittinen, Nina, Lopez Sanchez, Jose A., and Helaja, Juho

Subjects
biindoles, Indoles, biindole, chemistry.chemical_element, Graphite oxide, Heterogeneous catalysis, 010402 general chemistry, 01 natural sciences, Catalysis, Catalysi, chemistry.chemical_compound, Cycloisomerization, Nanoparticle, Organic chemistry, carbon supports, gold, heterogeneous catalysis, homocoupling, Alkynes, Carbon, Cyclization, Gold, Nanoparticles, Chemistry (all), carbon support, Alkyne, 010405 organic chemistry, General Chemistry, General Medicine, 3. Good health, 0104 chemical sciences, chemistry, Organic reaction, Colloidal gold, Indole, Surface modification, heterogeneous catalysi
Abstract

However, the reductive nature of those conditions limited thereaction scope and precluded the possibility of furthercascade functionalization. Soon after, Somorjai, Toste, andco-workers reported that Pt nanoparticles supported onmesoporous silica are able to efficiently promote the intra-molecular heterocyclization of N-carbamate protected 2-alkynylanilinestoaffordthecorrespondingindoleproductsinexcellent yields.

Published
2013

3. ChemInform Abstract: Cycloisomerization of 2-Alkynylanilines to Indoles Catalyzed by Carbon-Supported Gold Nanoparticles and Subsequent Homocoupling to 3,3′-Biindoles.

Author

Perea‐Buceta, Jesus E., Wirtanen, Tom, Laukkanen, Otto‐Ville, Maekelae, Mikko K., Nieger, Martin, Melchionna, Michele, Huittinen, Nina, Lopez‐Sanchez, Jose A., and Helaja, Juho

Subjects
*CYCLOISOMERIZATION, *INDOLE compounds, *GOLD nanoparticles, *ANILINE, *CYCLOOCTATETRAENES, *INDOLE derivatives
Abstract

The cycloisomerization of 2-alkynyl substituted anilines (I) is studied using a heterogeneous gold on carbon catalysts. [ABSTRACT FROM AUTHOR]

Published
2014
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