Palladium(0)-catalysed regioselective cyclisations of 2-amino(tosyl) benzamides/sulphonamides: the stereoselective synthesis of 3-ylidene-[1,4]benzodiazepin-5-ones/benzo[f][1,2,5]thiadiazepine-1,1-dioxides

被引:6
|
作者
Mondal, Debasmita [1 ]
Pal, Gargi [1 ]
Chowdhury, Chinmay [1 ]
机构
[1] CSIR Indian Inst Chem Biol, Organ & Med Chem Div, Kolkata 70032, India
关键词
Acetylenic carbons - Benzamides - Biologically active compounds - Propargyl carbonates - Regio-selective - Stereoselective formation - Stereoselective synthesis - Sulphonamides;
D O I
10.1039/d1cc00793a
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The Pd(0) catalysed cyclisation reactions between tert-butyl propargyl carbonates and 2-aminotosyl benzamides or sulphonamides deliver 1,4-benzodiazepin-5-ones or sultam derivatives, key components of many biologically active compounds. But 2-amino benzamides/sulphonamides require propargyl carbonates substituted at acetylenic carbon to undergo the reaction resulting in the stereoselective formation of the said products.
引用
收藏
页码:5462 / 5465
页数:4
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