N-alkyl(cycloalkyl)benzylamines, p-fluorobenzylamines, (1-phenylethyl)amines, [1-(p-fluorophenyl)ethyl]amines were synthesized by hydroamination of aldehydes and ketones with oximes.
Expanding the Boundaries of Water-Tolerant Frustrated Lewis Pair Hydrogenation: Enhanced Back Strain in the Lewis Acid Enables the Reductive Amination of Carbonyls
The development of a boron/nitrogen‐centered frustrated Lewispair (FLP) with remarkably high water tolerance is presented. As systematic steric tuning of the boron‐based Lewis acid (LA) component revealed, the enhanced back‐strain makes water binding increasingly reversible in the presence of relatively strong base. This advance allows the limits of FLP's hydrogenation to be expanded, as demonstrated
Transition Structure Geometries for Transfers of Neutral and Anionic Nitrogen to Lithiated Carbanions
作者:Peter Beak、Kathryn Conser Basu、James J. Li
DOI:10.1021/jo990509g
日期:1999.7.1
reaction via an oriented ionpair. Attempted endocyclic restriction tests for transfers of formally anionic nitrogen with 32 and 33 were not successful. Reactions of n-butyl, s-butyl and tert-butyllithium reagents with 16, 23, 30, 31, and 36-38 generally afford higher yields with increasing substitution at the carbon of the organolithium reagent and with decreasing substitution adjacent to the nitrogen
N-alkyl(cycloalkyl)benzylamines, p-fluorobenzylamines, (1-phenylethyl)amines, [1-(p-fluorophenyl)ethyl]amines were synthesized by hydroamination of aldehydes and ketones with oximes.