Synthesis of α-Amidoketones through the Cascade Reaction of Carboxylic Acids with Vinyl Azides under Catalyst-Free Conditions
作者:Cai Gao、Qianting Zhou、Li Yang、Xinying Zhang、Xuesen Fan
DOI:10.1021/acs.joc.0c01871
日期:2020.11.6
An efficient synthesis of α-amidoketone derivatives through the cascade reactions of carboxylicacids with vinyl azides is presented. Compared with literature protocols, notable features of this new method include catalyst-free conditions, broad substrate scope, good tolerance of a wide range of functional groups, and high efficiency. In addition, the synthetic potential of this method as a tool for
Thienyloxazolylacetic acid derivatives and process for preparing
申请人:Tanabe Seiyaku Co., Ltd.
公开号:US04460596A1
公开(公告)日:1984-07-17
A compound of the formula ##STR1## wherein Ring A is phenyl or halogenophenyl and R.sup.1 is hydrogen or lower alkyl, or a pharmaceutically acceptable salt thereof and processes for preparing the same are disclosed. Said compound is useful as a hypolipidemic agent.
Process for the preparation of 2-(2-thienyl)-ethylamine and derivatives
申请人:Occidental Chemical Corporation
公开号:US04874876A1
公开(公告)日:1989-10-17
The present invention provides a process for the preparation of 2-(2-thienyl)-ethylamine and derivatives thereof having the general formula: ##STR1## wherein R.sub.1 and R.sub.2 are hydrogen or taken together form a phenyl ring.
Novel thienyloxazolylacetic acid derivatives and process for preparing same
申请人:Tanabe Seiyaku Co., Ltd.
公开号:EP0065145A1
公开(公告)日:1982-11-24
A compound of the formula:
wherein Ring A is phenyl or halogenophenyl and R1 is hydrogen or lower alkyl, or a pharmaceutically acceptable salt thereof and processes for preparing the same are disclosed. Said compound is useful as a hypolipidemic agent.
本发明公开了一种式中:环 A 为苯基或卤素苯基,R1 为氢或低级烷基的化合物或其药学上可接受的盐及其制备工艺。 所述化合物可用作降血脂药。
DMAP-promoted oxidative functionalization of α-amino ketones via oxygen delivery from water/alcohols
This paper shows a novel oxidative functionalization of α-amino ketones to yield the corresponding α-ketoamides and α-acylimidates. The reaction proceeds via oxygen delivery from water/alcohols in conjunction with an electron acceptor and 4-dimethylaminopyridine (DMAP). Mechanistic study indicates that DMAP exhibits a dual function of nucleophilic catalysis and proton abstraction.