Asymmetric repetitive Mukaiyama aldol reaction between bis(trimethylsilylketene thioacetal) and dialdehydes proceeded in the presence of chiral oxazaborolidinone to afford optically active poly(β-hydroxy thioester)s. Degree of asymmetric induction during polymerization was evaluated both by a model reaction and chiral HPLC analysis of degradation products of the chiral polymers.
在手性
噁唑烷酮的存在下,双(三甲基
硅酮
硫代
乙醛)与二醛发生了不对称重复向山醛反应,生成了具有光学活性的聚(β-羟基
硫酯)。聚合过程中的不对称诱导程度通过模型反应和手性聚合物降解产物的手性 HPLC 分析进行了评估。