An efficient and high-yielding (up to 57% overall yield) asymmetric route to enantiopure P-stereogenic 1,2-bis[(o-hydroxyaryl)(phenyl)phosphino-P-borane]ethanes wherein aryl = phenyl and naphthyl, is presented. The occurring P-stereomutation is confirmed through X-ray crystal structure analysis of key intermediates.
高效和高产(高达57%的总收率),以对映体纯非对称路由P -stereogenic 1,2-双[(ø -hydroxyaryl)(苯基)膦基P -
硼烷]
乙烷,其中芳基=苯基和
萘基,是提出了。通过关键中间体的X射线晶体结构分析确认了发生的P-立体突变。