The nBu3SnH-mediated cyclisationreactions of allylic-allylic alkylation products of α,α-dicyanoalkenes and Morita–Baylis–Hillman (MBH) carbonates of methyl vinyl ketone (MVK) have been investigated. Cyclopentane derivatives bearing multiple substituents were efficiently prepared with moderate to excellent diastereoselectivity.
这 n Bu 3 SnH介导的α,α-二氰基烯烃和Morita–Baylis–Hillman的烯丙基-烯丙基烷基化产物的环化反应(MBH)的碳酸盐 甲基乙烯基酮 (MVK)已被调查。 环戊烷 有效地制备具有多个取代基的衍生物,并具有中等至优异的非对映选择性。