Catalytic Tandem Friedel–Crafts Alkylation/C4–C3 Ring-Contraction Reaction: An Efficient Route for the Synthesis of Indolyl Cyclopropanecarbaldehydes and Ketones
作者:Francesca Turnu、Alberto Luridiana、Andrea Cocco、Stefania Porcu、Angelo Frongia、Giorgia Sarais、Francesco Secci
DOI:10.1021/acs.orglett.9b02617
日期:2019.9.20
A general strategy for the synthesis of indolyl cyclopropanecarbaldehydes and ketones via a Brønsted acid-catalyzed indole nucleophilic addition/ring-contraction reaction sequence has been exploited. The procedure leads to a wide panel of cyclopropyl carbonyl compounds in generally high yields with a broad substrate scope.
已经开发了通过布朗斯台德酸催化的吲哚亲核加成/缩环反应序列合成吲哚基环丙烷甲醛和酮的一般策略。该方法导致以宽泛的底物范围通常以高收率获得大量的环丙基羰基化合物。