General Method for the Suzuki–Miyaura Cross-Coupling of Primary Amide-Derived Electrophiles Enabled by [Pd(NHC)(cin)Cl] at Room Temperature
作者:Peng Lei、Guangrong Meng、Yun Ling、Jie An、Steven P. Nolan、Michal Szostak
DOI:10.1021/acs.orglett.7b03191
日期:2017.12.15
temperature Suzuki–Miyauracross-coupling of commonly encountered primary benzamides is reported. A combination of site-selective N,N-di-Boc-activation (tert-butoxycarbonyl activation) of the amide nitrogen with practical air- and moisture-stable, well-defined, and highly reactive [Pd(NHC)(cin)Cl] (NHC = N-heterocyclic carbene; cin = cinnamyl) provides a highly effective route to biarylketones from primary
Chemoselective O-tert-butoxycarbonylation of phenols using 6,7-dimethoxyisoquinoline as a novel organocatalyst
作者:Yukako Saito、Yuichi Yoshimura、Hiroki Takahata
DOI:10.1016/j.tetlet.2010.10.114
日期:2010.12
The chemoselective O-tert-butoxycarbonylation of phenols using low levels (5-0.1 mol %) of 6,7-dimethoxyisoquinoline as a reusableorganocatalyst is described. (C) 2010 Elsevier Ltd. All rights reserved.
METHOD FOR PREPARING PRIMARY AMIDE COMPOUNDS FROM SECONDARY OR TERTIARY AMIDES
申请人:INDUSTRY FOUNDATION OF CHONNAM NATIONAL UNIVERSITY
公开号:US20230234913A1
公开(公告)日:2023-07-27
The present invention relates to a method for preparing primary amides from tertiary or secondary amides substituted with various alkyl groups through a transamidation reaction without a metal catalyst in room-temperature conditions by adding ammonium carbonate ((NH
4
)
2
CO
3
), wherein the method is eco-friendly since various secondary and tertiary amides that are not toxic or corrosive are used as starting materials and ammonium carbonate ((NH
4
)
2
CO
3
) that is neither a strong acid nor a strong base is used, and the method is economical since various primary amides can be synthesized with an excellent yield at room temperature without a metal catalyst.