A New and Concise Synthesis of 3-Aryl- and 3-Alkyl-1<i>H</i>-2-benzothiopyran-1-ones (Thioisocoumarins)
作者:Axel Couture、Hélène Cornet、Pierre Grandclaudon
DOI:10.1055/s-1990-27113
日期:——
3-Aryl- and 3-alkyl-1H-2-benzothiopyran-1-ones are readily accessible by reaction of the lithiated N,N-diethyl-o-toluamide (N,N-diethyl-2-methylbenzenecarboxamide) with appropriate aromatic, heteroaromatic and aliphatic thioesters.
本发明涉及一种3‑取代异硫香豆素衍生物的合成方法,包括以下步骤:以邻炔基肟醚为反应底物,硫化钠为硫源,碳酸钾作碱,N,N‑二甲基甲酰胺作溶剂,于90 oC搅拌反应12‑16小时,反应结束后向其加入1.2 mL 1 M HCl室温继续搅拌1小时。具有原料简单易得、反应条件相对温和、底物普适性广,制备工艺新颖、污染少、耗能低等优点。
Syntheses of some 3-substituted isothiochromen-1-ones
作者:U. M. V. Basvanag、S. Mohana Roopan、F. Nawaz Khan
DOI:10.1007/s10593-010-0419-z
日期:2009.10
COUTURE, AXEL;CORNET, HELENE;GRANDCLAUDON, PIERRE, SYNTHESIS (BRD),(1990) N2, C. 1133-1134
作者:COUTURE, AXEL、CORNET, HELENE、GRANDCLAUDON, PIERRE