申请人:——
公开号:US20020128504A1
公开(公告)日:2002-09-12
The present invention relates to the field of organic synthesis and more specifically to a process for the preparation of Michael-adducts, as defined below, by reacting a &bgr;,&bgr;- or a &agr;,&bgr;-disubstituted, or a &agr;,&bgr;,&bgr;-trisubstituted, &agr;,&bgr;-unsaturated ketone (I) with a &bgr;-ketoester or a &bgr;-diketone (II) in presence of a suitable catalyst of formula M(X)
n
, according to scheme 1:
1
本发明涉及有机合成领域,更具体地涉及通过在适当催化剂M(X)n的存在下,将β,β-或α,β-二取代或α,β,β-三取代的α,β-不饱和酮(I)与β-酮酯或β-二酮(II)反应,从而制备下述定义的迈克尔加合物的方法,如方案1:1所示。