A CONVENIENT SYNTHESIS OF POLYFUNCTIONALLY SUBSTITUTED HETEROCYCLIC SYSTEMS DERIVED FROM 4-METHYL-2<u>H</u>-l,4- BENZOXAZIN-3-ONE
作者:H. M. Moustafa
DOI:10.1080/10426500108040261
日期:2001.8
Abstract Cycloaddition of 2-|(N-phenyl)thiocarboxamido-|-4-methyl-2H,4-benzoxazin-3-one (2) to α,β-unsaturated compounds gave spiro pyridine derivatives. Reaction of compound 2 with some halo compounds afforded thiazolidine derivatives. 2-Ethoxymethylenyl-4-methyl-l.4-benzoxazine-3-thione underwent cyclocondensation reactions with some bidentate reagents. Condensed tricyclic systems have been prepared
摘要 2-|(N-苯基)硫代甲酰氨基-|-4-甲基-2H,4-benzoxazin-3-one (2)与α,β-不饱和化合物环加成得到螺吡啶衍生物。化合物2与一些卤素化合物反应得到噻唑烷衍生物。2-乙氧基亚甲基-4-甲基-1.4-苯并恶嗪-3-硫酮与一些二齿试剂发生环缩合反应。稠合三环系统已通过 3-二氰基亚乙基-4-甲基-2H-1,4-苯并恶嗪与合适的试剂反应制备。