Novel synthesis of 2H-1,5-benzoxathiepin-3(4H)-one and 5H-4,1-benzoxathiepin-3(2H)-one derivatives and chemical properties evaluation
作者:Taras M. Tarasiuk、Olena O. Shyshkina、Yulian M. Volovenko、Volodymyr V. Medviediev、Tetiana A. Volovnenko、Oleg V. Shishkin
DOI:10.1007/s00706-015-1500-1
日期:2015.10
for the synthesis of 2H-1,5-benzoxathiepin-3(4H)-one and 5H-4,1-benzoxathiepin-3(2H)-one derivatives have been developed. Carbonyl group of 2H-1,5-benzoxathiepin-3(4H)-one has been protected by cyclic and acyclic ketals. Interaction of 2H-1,5-benzoxathiepin-3(4H)-one with NaBH4, hydroxylamine, hydrazines, and Br2 has been investigated. Strecker reaction has been carried out for the synthesis of corresponding
摘要已开发出合成2 H -1,5-苯并氧杂噻吩-3(4 H)-one和5 H -4,1-苯并氧杂噻吩-3(2 H)-one衍生物的新方法。2 H -1,5-benzoxathiepin-3(4 H)-one的羰基已被环状和非环状缩酮保护。研究了2 H -1,5-benzoxathiepin-3(4 H)-one与NaBH 4,羟胺,肼和Br 2的相互作用。进行了Strecker反应以合成相应的α-氨基酸。Horner-Wadsworth-Emmons和Michael反应的结合可以得到β-取代的羧酸的衍生物。另外,2 H -1,5-苯并噻吩-3(4 H)-1参与了Johnson-Corey-Chaykovsky反应。 图形概要