The Michael Addition of Indole to α,β-Unsaturated Ketones Catalyzed by Iodine at Room Temperature
作者:Shun-Jun Ji、Teck-Peng Loh、Shun-Yi Wang
DOI:10.1055/s-2003-42105
日期:——
Indole undergoes conjugate addition with α,β-unsaturated ketones by means of alkylation of indole in the presence of a catalytic amount of molecular I 2 at room temperature to afford the corresponding adduct in excellent yields (up to 96%). The substitution on the indole nucleus occurred exclusively at the 3-position. N-alkylation products have not been observed.
在室温下,在催化量的分子 I 2 存在下,吲哚通过吲哚的烷基化与 α,β-不饱和酮进行共轭加成,以优异的产率(高达 96%)得到相应的加合物。吲哚核上的取代仅发生在 3 位。未观察到 N-烷基化产物。
Catalytic conjugate addition of indole to α,β-unsaturated ketones by Co(ClO4)2·6H2O/bis-Schiff base complexes
作者:Yong Hai Hui、Chun Mei Chen、Zheng Feng Xie
DOI:10.1016/j.cclet.2012.03.015
日期:2012.5
Co(ClO4)2·6H2O/bis-Schiff base complexes promoted the conjugateaddition of indole to α,β-unsaturated ketones under mild conditions, giving the corresponding addition products with high yields. And the complex has been characterized with XRD and IR.
Co(ClO 4)2 ·6H 2 O /双-席夫碱配合物在温和条件下促进了吲哚向α,β-不饱和酮的共轭加成反应,从而以高收率得到了相应的加成产物。并用XRD和IR对复合物进行了表征。