作者:Tomoko Kitano、Naohiro Shirai、Yoshiro Sato
DOI:10.1039/a605423d
日期:——
Substituted
3,4,6,7-tetrahydro-1H-5,2-benzoxathionines 4 have been
synthesized by the base-assisted aromatization of [2,3]
sigmatropic rearrangement products 7 (substituted
1,3,4,11a-tetrahydro-6H-5,2-benzoxathionines) of the
S-ylides 3, which were generated by the reaction of
trans-3-(substituted
phenyl)-4-(trimethylsilyl)methyl-1,4-oxathianium perchlorate 2
with caesium fluoride in dimethyl sulfoxide (DMSO) at room
temperature.
通过碱辅助芳构化反应,已经合成了取代的3,4,6,7-四氢-1H-5,2-苯并噁噻嗪4,其前体是通过S-叶立德3的[2,3]西格玛重排产物7(取代的1,3,4,11a-四氢-6H-5,2-苯并噁噻嗪)实现的,而S-叶立德3则是通过反式-3-(取代苯基)-4-(三甲基硅烷基)甲基-1,4-氧硫镨高氯酸盐2与氟化铯在室温下的二甲基亚砜(DMSO)中反应生成的。