Results 381 to 390 of about 424,465 (437)

Manganese-Catalyzed Direct Nucleophilic C(sp(2))-H Addition to Aldehydes and Nitriles.

Angewandte Chemie, 2015
Herein, a manganese-catalyzed nucleophilic addition of inert C(sp(2))-H bonds to aldehydes and nitriles is disclosed by virtue of a dual activation strategy.
Bingwei Zhou, Yuanyuan Hu, Cong-Hui Wang
semanticscholar   +1 more source

Acute aldehyde syndrome and chronic aldehydism

Mutation Research/Reviews in Genetic Toxicology, 1987
Abstract Different types of alcohol dehydrogenase and of aldehyde dehydrogenase lead to different blood acetaldehyde levels. With respect to acetaldehyde levels in human blood 3 types can be distinguished: (1) the normal range, (2) the acute aldehyde syndrome, and (3) the chronic aldehydism.
openaire   +2 more sources

Ligand-Controlled Divergent C-H Functionalization of Aldehydes with Enynes by Cobalt Catalysts.

Journal of the American Chemical Society, 2015
We describe a highly step and atom economical cobalt-catalyzed cyclization of 1,6-enynes with aldehydes to synthesize functionalized pyrrolidines and dihydrofurans with high chemo- and stereoselectivity.
R. Santhoshkumar, S. Mannathan, Chien‐Hong Cheng   +2 more
semanticscholar   +1 more source

Visible-light-promoted and one-pot synthesis of phenanthridines and quinolines from aldehydes and O-acyl hydroxylamine.

Organic Letters, 2015
A one-pot synthesis of phenanthridines and quinolines from commercially available or easily prepared aldehydes has been reported. O-(4-Cyanobenzoyl)hydroxylamine was utilized as the nitrogen source to generate O-acyl oximes in situ with aldehydes ...
Xiao-De An, Shouyun Yu
semanticscholar   +1 more source

Access to nitriles from aldehydes mediated by an oxoammonium salt.

Angewandte Chemie, 2015
A scalable, high yielding, rapid route to access an array of nitriles from aldehydes mediated by an oxoammonium salt (4-acetylamino-2,2,6,6-tetramethylpiperidine-1-oxoammonium tetrafluoroborate) and hexamethyldisilazane (HMDS) as an ammonia surrogate has
C. Kelly, Kyle M. Lambert, M. Mercadante, John M. Ovian, W. Bailey, N. Leadbeater   +5 more
semanticscholar   +1 more source

Catalytic Transformation of Aldehydes with Nickel Complexes through η(2) Coordination and Oxidative Cyclization.

Accounts of Chemical Research, 2015
Chemists no longer doubt the importance of a methodology that could activate and utilize aldehydes in organic syntheses since many products prepared from them support our daily life.
Y. Hoshimoto, M. Ohashi, S. Ogoshi
semanticscholar   +1 more source

Indium(III)-catalyzed knoevenagel condensation of aldehydes and activated methylenes using acetic anhydride as a promoter.

Journal of Organic Chemistry, 2015
The combination of a catalytic amount of InCl3 and acetic anhydride remarkably promotes the Knoevenagel condensation of a variety of aldehydes and activated methylene compounds.
Yohei Ogiwara, Keita Takahashi, Takefumi Kitazawa, Norio Sakai   +3 more
semanticscholar   +1 more source

Reductive Amination of Aldehydes and Ketones with Sodium Triacetoxyborohydride. Studies on Direct and Indirect Reductive Amination Procedures(1).

Journal of Organic Chemistry, 1996
Sodium triacetoxyborohydride is presented as a general reducing agent for the reductive amination of aldehydes and ketones. Procedures for using this mild and selective reagent have been developed for a wide variety of substrates.
A. Abdel-Magid, K. Carson, B. D. Harris, C. Maryanoff, R. Shah   +4 more
semanticscholar   +1 more source

Synthesis from Aldehydes by Substitution of the Aldehyde Hydrogen

ChemInform, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
X. Franck, B. Figadere
openaire   +2 more sources

Stereodivergent α-allylation of linear aldehydes with dual iridium and amine catalysis.

Journal of the American Chemical Society, 2014
We describe the fully stereodivergent, dual catalytic α-allylation of linear aldehydes. The reaction proceeds via direct iridium-catalyzed substitution of racemic allylic alcohols with enamines generated in situ.
S. Krautwald, Michael A. Schafroth, D. Sarlah, E. Carreira   +3 more
semanticscholar   +1 more source