Novel heteropentalenes. Synthesis of heteropentalenes from tetrahydroimidazo [1.2-d]-(1,2,4)-thiadiazoles and conversion of certain heteropentalenes to benzothiazole derivatives
作者:Roger J.S. Beer、Hardev Singh、David Wright、Lars Kr. Hansen
DOI:10.1016/s0040-4020(01)88906-7
日期:1981.1
Oxidation of 1 - phenylcarbamoylidazolidine - 2 - thione gives 2,3,5,6 - tetrahydro - 2 - phenylimidazo [1,2-d]- (1,2,4) - thiadiazole - 3 - one which undergoes addition reactions with heterocumulenes leading to various heteropentalenes. Oxidation of 1 - phenylthiocarbamoylimidazlidine- 2 - thione yields 1- (benzothiazol - 2- yl) - imidazolidine - 2 - thione, also obtained by acid catalysed decomposition
1-苯基氨基甲酰基idazolidine-2-硫酮的氧化反应生成2,3,5,6-四氢-2-苯基咪唑并[1,2-d]-(1,2,4)-噻二唑-3-与异枯烯进行加成反应的化合物导致各种异戊烯。1-苯基硫代氨基甲酰咪唑烷-2-硫酮的氧化产生1-(苯并噻唑-2-基)-咪唑烷-2-硫酮,也可以通过酸催化的3,4--乙醇-2,3,4,5-四氢-2的分解而获得。 ,5-双苯基亚氨基-1,6,6aS IV -trithia-3,4-二氮杂戊烯。2,3,4,5-四氢-1,6-二苯基-3,4-丙烷-6aS IV-硫杂-1,3,4,6-四氮杂戊烯-2,5发生与苯并噻唑类似的酸催化分解-二硫酮。