Open up your chemistry! By using cinchonine‐based trimeric quaternary ammonium salts as catalysts, meso‐aziridines can be ring‐opened, in an enantioselective manner, through nucleophilic addition of the sulfur atom of α‐isothiocyanato imides (see scheme; PG=protecting group). This synthetic method provides an efficient way to access useful chiral β‐aminothiooxazole compounds.
打开你的
化学!通过使用基于
辛可宁的三聚体季
铵盐作为催化剂,可以通过亲核加成α-异
硫氰酸根
酰亚胺的
硫原子,以对映选择性的方式将内消旋
氮丙啶开环(参见方案;
PG =保护基)。这种合成方法提供了一种有效的途径来获得有用的手性β-
氨基
硫恶唑化合物。