Synthesis of α-Aliphatic and β-Aromatic Substituted Taurines via Regioselective Ring Opening of Thiiranes with Ammonia
作者:Jiaxi Xu、Hao Yu、Shengli Cao、Leilei Zhang、Gang Liu
DOI:10.1055/s-0029-1216816
日期:2009.7
Thiiranes are important starting materials for the synthesis of substituted taurines. The regioselectivity of ring-opening reactions of thiiranes with ammonia in the presence of silver nitrate was investigated. The results of the ring-opening reaction and subsequent peroxy acid oxidation indicate that alkyl-substituted thiiranes give rise to 1-monoalkyl- and 1,1-dialkyltaurines, whereas aryl-substituted
An Expeditious Synthesis of 1-Substituted and Cyclic Taurines
作者:Jiaxi Xu、Jiaxing Huang、Fei Wang、Da-Ming Du
DOI:10.1055/s-2005-869994
日期:——
A series of 1-substituted taurines, including optically active taurines, were synthesized expeditiously from epoxides via episulfidation with potassium sulfocyanate, ring-opening with dibenzylamine, followed by oxidation with performic acid, and hydrogenolysis in the presence of palladium hydroxide on carbon powder. This method was also used for the synthesis of trans-cyclic taurines.