General Synthesis of <i>N</i>-Alkylation of Amines with Secondary Alcohols via Hydrogen Autotransfer
作者:Murugan Subaramanian、Siba P. Midya、Palmurukan M. Ramar、Ekambaram Balaraman
DOI:10.1021/acs.orglett.9b02990
日期:2019.11.15
Direct catalytic N-alkylation of amines with secondary alcohols via hydrogen autotransfer (HA) strategy is very challenging and has been scarcely reported, even under precious metal catalysis. Herein, an efficient N-alkylation of amines, including benzylamines using secondary alcohols as alkylating agents, is reported. This reaction is catalyzed by a molecularly defined NNN-Ni(II) pincercomplex, and
Visible-Light-Mediated Umpolung Reactivity of Imines: Ketimine Reductions with Cy<sub>2</sub>NMe and Water
作者:Rui Wang、Mengyue Ma、Xu Gong、Grace B. Panetti、Xinyuan Fan、Patrick J. Walsh
DOI:10.1021/acs.orglett.8b00778
日期:2018.4.20
carbanionic reactivity of imines mediated by photoredox catalysis is demonstrated. The umpolung imine reactivity is exemplified by proton abstraction from water as a key step in the reduction of benzophenone ketimines to amines (up to 98% yield). Deuterium is introduced into amines efficiently using D2O as an inexpensive deuterium source (≥95% D ratio). The mechanism of this unusual transformation
Alkyl formates can serve as a new class of bifunctional reagents for transfer hydroalkylation reactions. Using a ruthenium(II) catalyst combined with lithium iodide, they can promote the hydroalkylation of imines to amines, with the formation of CO2 as the only by-product.
甲酸烷基酯可作为一类新型双功能试剂用于转移加氢烷基化反应。使用与碘化锂结合的钌 (II) 催化剂,它们可以促进亚胺加氢烷基化为胺,同时形成 CO 2作为唯一的副产物。
Lespagnol; Dicop; Vanlerenberghe, Bulletin de la Societe de Pharmacie de Lille, 1945, p. 49
作者:Lespagnol、Dicop、Vanlerenberghe
DOI:——
日期:——
Joshi, S. C.; Mehrotra, K. N., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1982, vol. 21, # 1, p. 68 - 69