Synthesis, Characterization and Crystallographic Studies of Three 2-Aryl-3-methyl-4-aryl-1,3-thiazolium-5-thiolates
作者:Petronio Filgueiras de Athayde-Filho、Joseph Miller、Alfredo Mayall Simas、Bruno Freitas Lira、José Alixandre de Souza Luis、Júlio Zuckerman-Schpector
DOI:10.1055/s-2003-38070
日期:——
of the three mesoionic compounds also confirmed their structures and our definition of mesoionic compounds. In particular they showed that the mesoionic ring system has two regions in which there is electron and charge delocalization separated by what are essentially single bonds. The data also suggested a tendency for the 2- and 4-aryl groups to lie in the plane of the mesoionic ring.
2,4-二苯基-3-甲基-1,3-噻唑鎓-5-硫醇盐、2-(4'-氯苯基)-3-甲基-4-苯基-1,3-噻唑鎓-5-硫醇盐和2- (4'-氯苯基)-3-甲基-4-(4'-异丙基-苯基)-1,3-噻唑鎓-5-硫醇盐是通过N-甲基-C-芳基-甘氨酸合成的,涉及一锅法1 ,3-偶极环加成/环反转序列。后两种中间离子化合物是新的,一些中间体也是如此。化合物被充分表征,而三种介离子化合物的 X 射线衍射研究也证实了它们的结构和我们对介离子化合物的定义。特别是他们表明,介离子环系统有两个区域,其中电子和电荷离域由基本上是单键的东西隔开。