2,2-Dioxo-1<i>H</i>-thieno[3,4-<i>c</i>][1,2]thiazines. Synthesis and some reactions of a new heterocycle
作者:Egon Fanghänel、Hagen Bartossek、Ute Baumeister、Matthias Biedermann、Helmut Hartung
DOI:10.1002/jhet.5570350639
日期:1998.11
achieved. Compounds 2 were prepared from the 3,5-dimethyl-1,1-dioxo-1,2-thiazine-4-carbaldehydes 1 by reaction with sulfur and triethyl amine in dimethylformamide under mild conditions. They were characterized spectroscopically and by X-ray structure analysis. The formylation, chlorination and oxidation of 2 are reported.
实现了取代的2,2-二氧代-1-苯基-1 H-噻吩并[3,4- c ] [1,2]噻嗪2的首次合成及其反应。通过在温和条件下与硫和三乙胺在二甲基甲酰胺中反应,由3,5-二甲基-1,1-二氧杂-1,2-噻嗪-4-甲醛1制备化合物2。通过光谱和X射线结构分析对它们进行表征。据报道有2个甲酰化,氯化和氧化。