A Chiral Bipyridyl Alcohol for Catalytic Enantioselective Nozaki-Hiyama-Kishi Allylation of Aldehydes and Ketones
作者:Rui-Yu Chen、Attrimuni P. Dhondge、Gene-Hsian Lee、Chinpiao Chen
DOI:10.1002/adsc.201400945
日期:2015.3.23
Nozaki–Hiyama–Kishi (NHK) allylation of aldehydes and ketones with allylic halides. The allylation of various aromatic, α,β‐unsaturated, and aliphatic aldehydes and ketones produces the desired homoallylic alcohols in satisfactory yields (up to 98%) and high enantioselectivities (up to 99% ee). The present method can be applied widely and affords an efficient means of obtaining chiral homoallylic alcohols.
已经开发出一类联吡啶醇配体。使用铬(II)配体合成的催化剂可促进醛和酮与烯丙基卤化物的对映选择性Nozaki–Hiyama–Kishi(NHK)烯丙基化。各种芳族,α,β-不饱和醛和脂肪族醛与酮的烯丙基化可产生所需的均烯丙基醇,并具有令人满意的收率(高达98%)和高对映选择性(高达99%ee)。本方法可广泛应用,并提供了一种获得手性均烯丙基醇的有效方法。