phenethylamine derivatives, underwent a direct aromatic carbonylation to afford five- or six-membered benzolactams. In the carbonylation, the chelation effect or steric repulsion between Pd(II) and the meta-substituent in the ortho-palladation and the ring sizes of cyclopalladation products that were formed prior to carbonylation were found to generate good site selectivity and increase the reaction rate. In
Simple Metal-Free Direct Reductive Amination Using Hydrosilatrane to Form Secondary and Tertiary Amines
作者:Sami E. Varjosaari、Vladislav Skrypai、Paolo Suating、Joseph J. M. Hurley、Ashley M. De Lio、Thomas M. Gilbert、Marc J. Adler
DOI:10.1002/adsc.201700079
日期:2017.6.6
This work describes the use of cheap, safe, and easy-to-handle hydrosilatrane as the reductant in direct reductive amination reactions. This efficient method enables a facile, metal-free access to secondary and tertiaryaminesfrom a wide range of aldehydes and ketones, with the synthesis of tertiaryamines requiring no additives at all. This reaction demonstrates excellent functional group tolerance
Methyl-triflate-mediated dearylmethylation of <i>N</i>-(arylmethyl)carboxamides <i>via</i> the retro-Mannich reaction induced by electrophilic dearomatization/rearomatization in an aqueous medium at room temperature
Dearylmethylation of N-(arylmethyl)carboxamides was achieved under metal-free conditions in an aqueous medium induced by electrophilic dearomatization/rearomatization.
在无金属条件下,在水介质中通过亲电脱芳香化/重芳香化实现了N-(芳甲基)羧酰胺的去芳甲基化。
Iridium-catalysed amine alkylation with alcohols in water
作者:Ourida Saidi、A. John Blacker、Mohamed M. Farah、Stephen P. Marsden、Jonathan M. J. Williams
DOI:10.1039/b923083a
日期:——
Amines have been directly alkylated with alcohols using 1 mol% [Cp*IrI2]2 catalyst in water in the absence of base or other additives.
胺类在无碱或其他添加剂的水相中,使用1摩尔% [Cp*IrI2]2催化剂与醇进行直接烷基化反应。
Generation of aminyl radicals using sulfenamides as synthetic precursors
作者:W.Russell Bowman、David N. Clark、Robert J. Marmon
DOI:10.1016/s0040-4020(01)80837-1
日期:1994.1
Sulfenamides are synthesised from reaction between amines and N-(benzenesulfenyl)-phthalimide or benzenesulfenyl chloride. The sulfenamides undergo reaction with tributyltin hydride to yield aminylradicals which can be cyclised onto suitable alkenes.