Alkaline-Metal-Catalyzed One-Pot Aminobenzylation of Aldehydes with Toluenes
作者:Guoqing Liu、Patrick J. Walsh、Jianyou Mao
DOI:10.1021/acs.orglett.9b02737
日期:2019.11.1
A novel and easily accessible MN(SiMe3)2 (M = Li or Na)/Cs2CO3 co-catalyzed benzylation of in situ generated N-(trimethylsilyl) aldimines with toluene derivatives has been successfully developed. The catalyst exhibits high chemoselectivity for deprotonation of toluenes at the benzylic position. The utility of this system is exemplified by the one-pot synthesis of a diverse array of bioactive 1,2-diarylethylamines
已成功开发了一种新颖且易于使用的MN(SiMe 3)2(M = Li或Na)/ Cs 2 CO 3催化原位生成的N-(三甲基甲硅烷基)亚胺与甲苯衍生物的苄基化反应。该催化剂对苄基位置的甲苯去质子表现出高化学选择性。一锅合成具有优异效率和宽泛的官能团耐受性的各种生物活性1,2-二芳基乙胺的例子说明了该系统的实用性。
Absolute configurations of some 1,2-diphenylethane derivatives
作者:N.D. Berova、B.J. Kurtev
DOI:10.1016/s0040-4020(01)82780-0
日期:1969.1
The absolute configurations of two series of genetically related compounds with a general formula PhCH(X) - CH(Y)Ph are determined by chemical correlation with 2,3-diphenylpropanoic acid (V). It is demonstrated that all threo-isomers of absolute configuration A are laevorotatory and reasons are given that this is due to conformational asymmetry.
FLUORINATED BENZENESULFONAMIDES AS INHIBITORS OF CARBONIC ANHYDRASE
申请人:VILNIUS UNIVERSITY
公开号:US20150266900A1
公开(公告)日:2015-09-24
Novel fluorinated benzenesulfonamides compounds of general formula (I)
can be used in biomedicine as active ingredients in pharmaceutical formulations, because they inhibit enzymes which participate in disease progression.