New Applications of 2,4,6-Trichloro-1,3,5-triazine (TT) in Synthesis: Highly Efficient and Chemoselective Deprotection and Ring-Enlargement of Dithioacetals and Oxathioacetals
作者:Babak Karimi、Hassan Hazarkhani
DOI:10.1055/s-2003-42459
日期:——
Efficient deprotection of a wide variety of 1,3-dithioacetals and 1,3-oxathiolanes to the corresponding carbonyl compounds at room temperature using a combination of 2,4,6-trichloro-1,3,5-triazine (TT) and dimethyl sulfoxide (DMSO) was investigated. In this way, 1,3-oxathioacetals and 1,3-dithioacetals of enolizable ketones were converted to the corresponding 1,4-oxathiepine and 1,4-dithiepine derivatives, respectively.
研究了一种有效去保护各种1,3-二硫代乙缩醛和1,3-噁噻烷的方法,使用2,4,6-三氯-1,3,5-三嗪(TT)和二甲基亚砜(DMSO)的组合,在室温下将其转化为相应的羰基化合物。通过这种方式,酮类的1,3-噻唑乙缩醛和1,3-二硫代乙缩醛分别转化为相应的1,4-噻吩啶和1,4-二噻吩衍生物。