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Chiral phosphine oxide aziridinyl phosphonate as a Lewis base catalyst for enantioselective allylsilane addition to aldehydes

2015-09-15
Doğan, Özdemir
Bulut, Adnan
Tecimer, M. Ali
A series of chiral Lewis bases, phosphine oxide ferrocenyl aziridinyl methanol 1-4, phosphinyl aziridinyl phosphonates 5 and 6, and phosphine oxide aziridinyl phosphonates 7 and 8 were screened for allylsilane additions to aldehydes. Among the Lewis bases, 8 was found to catalyze the reaction by forming the product in up to 94% yield and with 77% ee.