Synthesis of new heterocycles by oxidation of functionalized cyclic derivatives of bis(2-chlorovinyl) sulfide and selenide
作者:A. V. Martynov、N. A. Makhaeva、S. V. Amosova
DOI:10.1134/s107042801606021x
日期:2016.6
Oxidation of 4-substituted 2,6-bis[(E)-chloromethylidene]thiomorpholine with hydrogen peroxide in a mixture of chloroform with acetic acid afforded the corresponding 4-R-2,6-bis[(E)-chloromethylidene]-thiomorpholine 1-oxide. The results of oxidation of bis[(E)-chloromethylidene]-1,4-dichalcogenanes under analogous conditions depended on the chalcogen nature and its position in the ring. The reaction
在氯仿与乙酸的混合物中用过氧化氢氧化4-取代的2,6-双[(E)-氯亚甲基]硫代吗啉得到相应的4-R-2,6-双[(E)-氯亚甲基]-硫代吗啉1氧化物。在类似条件下,双[(E)-氯亚甲基] -1,4-二氢hal烷的氧化结果取决于硫族元素的性质及其在环中的位置。的2,6-双[(反应ë)-chloromethylidene] -1,4-二噻烷,得到2,6-双[(ë)-chloromethylidene] -1,4-二噻烷-1,1,4,4-四酮的,而3,5-双[(ë)-chloromethylidene] -1,4- thiaselenane -1,1-二酮意外地从3,5-二获得的[(ë)-氯亚甲基] -1,4-硫代噻吩烷。在氧化条件下分解的2,6-双[(E)-氯亚甲基] -1,4-噻吩戊烷和2,6-双[(E)-氯亚甲基] -1,4-二硒烷。