1,1-二膦和二乙烯基膦通过碱催化氢膦化反应得到。
1,1-Diphosphines and divinylphosphines via base catalyzed hydrophosphination.
机构信息
Department of Chemistry, University of Bath, Bath, BA2 7AY, UK.
出版信息
Chem Commun (Camb). 2018 Sep 13;54(74):10443-10446. doi: 10.1039/c8cc05890c.
PMID:30152503
Abstract
A catalytic hydrophosphination route to 1,1-diphosphines is yet to be reported: these narrow bite angle pro-ligands have been used to great effect as ligands in homogeneous catalysis. We herein demonstrate that terminal alkynes readily undergo double hydrophosphination with HPPh2 and catalytic potassium hexamethyldisilazane (KHMDS) to generate 1,1-diphosphines. A change to H2PPh leads to the formation of P,P-divinyl phosphines.
摘要
一种催化氢膦化途径来制备 1,1-二膦还没有被报道：这些狭窄的配位角的前配体在均相催化中作为配体已经被证明是非常有效的。我们在此证明末端炔烃很容易与 HPPh2 和催化的六甲基二硅氮烷钾（KHMDS）发生双氢膦化反应，生成 1,1-二膦。如果将 H2PPh 改变为 H2PPh2，则会形成 P,P-二乙烯基膦。
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