Highly Flexible Synthetic Routes to Functionalized Phospholanes from Carbohydrates
作者:Yuan-Yong Yan、T. V. RajanBabu
DOI:10.1021/jo991762j
日期:2000.2.1
Highly functionalized phospholanes 15, 17, and 26 and the corresponding diastereomers in which the configurations of the phospholane carbon-2 and carbon-5 are inverted can be readily prepared from d-mannitol by displacement of the appropriate dimesylate or cyclic sulfate with dilithiumphosphide reagents. The diols from which these ligands are prepared can also be converted into diarylphosphinite ligands
通过用磷化二锂试剂置换合适的二甲磺酸酯或环状硫酸酯,可以容易地从d-甘露醇制备高度官能化的膦烷15、17和26以及其中膦烷碳2和碳5的构型反转的相应非对映异构体。制备这些配体的二醇也可以转化为二芳基亚膦酸酯配体。还描述了产生带有半可溶性叔丁基硫基的相关单膦的途径。这些配体和相关脱保护衍生物的配合物可能可用于有机和水介质中的对映选择性催化。