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。
Transformations of 3-formylindoles under the action of acids
作者:A. M. Korolev、L. N. Yudina、E. I. Lazhko、M. I. Reznikova、M. N. Preobrazhenskaya
DOI:10.1007/bf02324639
日期:1999.5
From ascorbigens to indolocarbazoles
作者:Maria N. Preobrazhenskaya、Alexander M. Korolev、Ilya I. Rozhkov、Larisa N. Yudina、Eduard I. Lazhko、Enrico Aiello、Anna Maria Almerico、Francesco Mingoia
DOI:10.1016/s0014-827x(99)00026-9
日期:1999.5
New methods of L-ascorbic acid derivatization with the use of polyfunctional indole-3-cabinols are described. Reaction of beta-hydroxy-N-methyltryptamine and L-ascorbic acid gave lactame derivatives; (indol-3-yl)glycolic and L-ascorbic acids produced 2-hydroxy-4-hydroxymethyl-3-(indol-3-yl) Similarly, 4-hydroxy-3-methoxyphenylglycolic and L-ascorbic acids yielded 2-hydroxy-3-(4-hydroxy-3-methoxyphenyl)-4-hydroxymethyl-cyclopen-2-enone. Properties of N-methoxyascorbigen (neoascorbigen) were investigated. Alkylation of L-ascorbic acid with polysubstituted pyrrolecarbinols led to pyrrole analogues of ascorbigen. Acidic transformation of 3-formylindole and 1-methyl-3-formylindole led to indolocarbazoles and triindolyhmethane derivatives. (C) 1999 Elsevier Science S.A. All rights reserved.
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。
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作者:L. N. Yudina、E. I. Lazhko、A. M. Korolev、M. N. Preobrazhenskaya