Enantioselective transformation of α,β-unsaturated ketones using chiral organic catalysts
    6.
    发明授权
    Enantioselective transformation of α,β-unsaturated ketones using chiral organic catalysts 有权
    使用手性有机催化剂对α,β-不饱和酮的对映选择性转化

    公开(公告)号:US07592463B2

    公开(公告)日:2009-09-22

    申请号:US10313744

    申请日:2002-12-05

    摘要: Nonmetallic organic catalysts are provided that facilitate the enantioselective reaction of α,β-unsaturated ketones. The catalysts are chiral imidazolidinone compounds having the structure of formula (IIA) or (IIB) or are acid addition salts thereof, wherein, in one preferred embodiment, R1 is C1-C6 alkyl, R2 is phenyl or 2-methylfuryl, R3 and R4 are hydrogen, and R5 is phenyl optionally substituted with 1 or 2 substituents selected from the group consisting of halo, hydroxyl, and C1-C6 alkyl. The chiral imidazolidinones are useful in catalyzing a wide variety of reactions, including cycloaddition reactions, Friedel-Crafts alkylation reactions, and Michael additions.

    摘要翻译: 提供了促进α,β-不饱和酮的对映选择性反应的非金属有机催化剂。 催化剂是具有式(IIA)或(IIB)结构的手性咪唑烷酮化合物或其酸加成盐,其中在一个优选的实施方案中,R 1是C 1 -C 6烷基,R 2是苯基或2-甲基呋喃基,R 3和R 4 是氢,R5是任选被1或2个选自卤素,羟基和C 1 -C 6烷基的取代基取代的苯基。 手性咪唑烷酮可用于催化多种反应,包括环加成反应,Friedel-Crafts烷基化反应和迈克尔加成。