Rapid synthesis of quinoline-4-carboxylic acid derivatives from arylimines and 2-substituted acrylates or acrylamides under indium(iii) chloride and microwave activations. Scope and limitations of the reaction
quinoline-4-carboxylic acid derivatives has been achieved by reaction of 2-methoxy acrylates or acrylamides with N-arylbenzaldimines in acetonitrile under InCl3 catalysis and microwave irradiation. Isolated yields up to 57% within 3 min have been obtained. The Lewis acid and the microwave activation appeared as crucial parameters for the reaction. The role of indium chloride and ytterbium triflate was specified
在InCl3催化和微波辐射下,2-甲氧基丙烯酸酯或丙烯酰胺与N-芳基苯甲二胺在乙腈中的反应已实现了喹啉-4-羧酸衍生物的快速合成。在3分钟内获得了高达57%的分离产率。路易斯酸和微波活化似乎是反应的关键参数。使用13 C NMR数据和模型理论研究确定了氯化铟和三氟甲磺酸的作用。
SCHMIDT, R. R.;ENHSEN, A.;BETZ, R., SYNTHESIS, BRD, 1985, N 2, 160-163
作者:SCHMIDT, R. R.、ENHSEN, A.、BETZ, R.
DOI:——
日期:——
ANNULATED 2-AMINO-3-CYANO THIOPHENES AND DERIVATIVES FOR THE TREATMENT OF CANCER
申请人:Boehringer Ingelheim International GmbH
公开号:US20210380574A1
公开(公告)日:2021-12-09
The present invention encompasses compounds of formula (I)
wherein R
1a
, R
1b
, R
2a
, R
2b
, Z, R
3
to R
5
, A, p, U, V, W, L and E have the meanings given in the claims and specification, their use as inhibitors of mutant Ras family proteins, pharmaceutical compositions and preparations containing such compounds and their use as medicaments/medical uses, especially as agents for treatment and/or prevention of oncological diseases.
Vinyl-Carbanionen; 22<sup>1</sup>; Direkte<i>C</i>-Lithiierung von α-Methoxyacrylsäure und ihren Derivaten
作者:Richard R. Schmidt、Alfons Enhsen、Rainer Betz
DOI:10.1055/s-1985-31139
日期:——
()--isopropyl-3-tosylacrylamide: A new α-acylvinyl cation