作者:I. Kapovits、J. Rábai、F. Ruff、Á. Kucsman、B. Tanács
DOI:10.1016/0040-4020(79)80013-7
日期:1979.1
The preparations of spirocyclic sulfuranes from bis(2-carboxyaryl) sulfoxides with dehydrating agents were investigated. Depending on the manner of dehydration, spirosulfurane formation follows different courses established by using 18O-labelled 2,2'-sulfinyldibenzoic acid. Sulfoxides with 2-carboxybenzyl group failing to form spirosulfuranes undergo the Pummerer reaction yielding lactones. In aqueous
研究了双(2-羧基芳基)亚砜与脱水剂制备螺环硫烷的过程。取决于脱水的方式,螺硫隆的形成遵循通过使用18 O-标记的2,2'-亚磺酰基二苯甲酸建立的不同过程。具有2-羧基苄基的亚砜不能形成螺硫脲,会发生Pummerer反应,生成内酯。在二恶烷水溶液中,螺硫脲通常会水解成亚砜。在同一芳环上具有两个硝基的螺硫磺烷通过SC ar键断裂而水解。