Facile synthesis of 2-arylmethylindoles and 2-vinylic indoles through palladium-catalyzed heteroannulations of 2-(2-propynyl)aniline and 2-(2-propynyl)tosylanilide
Protocols for the Syntheses of 2,2′-Bis(indolyl)arylmethanes, 2-Benzylated Indoles, and 5,7-Dihydroindolo[2,3-<i>b</i>]carbazoles
作者:Ferruh Lafzi、Haydar Kilic、Nurullah Saracoglu
DOI:10.1021/acs.joc.9b02124
日期:2019.9.20
The electrophilic substitution reaction of 4,7-dihydroindole with aryl-aldehydes as an electrophilic partner followed by an oxidation step to deliver 2,2′-bis(indolyl)arylmethanes was studied for the first time. The reaction afforded regioselectivity at the 2,2′-positions of indole in an operationally simple and inexpensive procedure with a variety of substrates. To the best of our knowledge, this
首次研究了4,7-二氢吲哚与芳基醛作为亲电伙伴的亲电取代反应,然后进行氧化步骤以生成2,2'-双(吲哚基)芳基甲烷。该反应在操作简单且廉价的过程中使用多种底物在吲哚的2,2'-位提供了区域选择性。据我们所知,这是以无取代基方式获得的2,2'-双(吲哚基)芳基甲烷的第一组实例。还报道了一种从二吡咯甲烷到相应的2-苄基吲哚的简便方法。另外,将2,2'-双(吲哚基)芳基甲烷转化为5,7-二氢吲哚并[2,3- b ]咔唑。
Substituted indole derivatives
申请人:Syntex (U.S.A.) Inc.
公开号:US05380739A1
公开(公告)日:1995-01-10
Compounds of the Formula (I), (II), or (III): ##STR1## wherein the variables are as defined in the specification and the pharmaceutically acceptable salts thereof, exhibit useful pharmacological properties, and are particularly useful as angiotensin II antagonists.
carboannulation of [60]fullerene with C2-functionalized free indoles for the direct construction of novel [60]fullerene-fused tetrahydrocyclopenta[b]indoles. The transformation shows high regioselectivity and atom economy, broad substrate scope, and good functional group tolerance, providing an efficient and practical approach to access diversely substituted fullerene-fused polycyclic derivatives from simple
本文报道了一种新的铜催化的[60]富勒烯与C2官能化的吲哚的铜催化N–H / C–H顺序中继氧化自由基碳环化反应,用于直接构建新颖的[60]富勒烯稠合的四氢环戊[ b ]吲哚。该转化显示出高的区域选择性和原子经济性,广泛的底物范围和良好的官能团耐受性,提供了一种有效且实用的方法来从简单的烃类中获得各种取代的富勒烯稠合的多环衍生物。
Facile Synthesis of 2-Benzylindoles
作者:Paul Wiedenau、Siegfried Blechert
DOI:10.1080/00397919708006807
日期:1997.6
A wide range of 2-Benzylindoles 2 are conveniently and efficiently prepared by heating N-benzylindoles 1 in polyphosphoric acid. Mechanistic studies suggest an intramolecular rearrangement via the corresponding 3-benzyl intermediates.