MOP-Type Binaphthyl Phosphite and Diamidophosphite Ligands and Their Application in Catalytic Asymmetric Transformations
作者:Konstantin N. Gavrilov、Sergey E. Lyubimov、Sergey V. Zheglov、Eduard B. Benetsky、Pavel V. Petrovskii、Eugenie A. Rastorguev、Tatiana B. Grishina、Vadim A. Davankov
DOI:10.1002/adsc.200600340
日期:2007.5.7
Monodentate phosphite and diamidophosphite ligands have been developed based on O-methyl-BINOL. These chiral ligands are easy to prepare from readily accessible phosphorylating reagents – (Sa or Ra)-2-chlorodinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepine and (2R,5S)-2-chloro-3-phenyl-1,3-diaza-2-phosphabicyclo[3.3.0]octane. The new ligands have demonstrated excellent enantioselectivity in the palladium-catalysed
基于O-甲基-BINOL已经开发了单齿亚磷酸酯和亚氨基二亚磷酸酯配体。这些手性配体很容易从容易获得的磷酸化试剂中制备-(S a或R a)-2-氯二萘并[2,1- d:1',2'- f ] [1,3,2]二氧杂磷平和(2R ,5S)-2-氯-3-苯基-1,3-二氮杂-2-磷酸双环[3.3.0]辛烷。新的配体在(E)-1,3-二苯基烯丙基乙酸酯与对甲苯磺酸钠(最高99%ee),吡咯烷(最高97%ee)的钯催化的烯丙基取代反应中表现出优异的对映选择性),二丙胺(最高95%ee)和丙二酸二甲酯(最高99%ee)。在钯催化的乙基(E)-1,3-二苯基碳酸烯丙酯的脱硫反应中,实现了高达96%的对映选择性。所述diamidophosphite配体在衣康酸二甲酯(高达90%的Rh的催化不对称氢化表现出很好的对映选择性EE)。