Efficient catalytic asymmetric prop-2-ynylation of achiral aldehydes
with allenyltributylstannane promoted by a BINOL–Ti
IV
complex (10 mol%) is achieved with high enantioselectivity by the use of
Et
2
BSPr
i
.
通过使用 Et 2 BSPr i,在 BINOL-Ti IV 复合物(10 mol%)的促进下,以高对映选择性实现了不对称丙-2-炔基与全烯基三丁基锡烷的高效催化。