Lend me your hydrogen! The first transition‐metal‐catalyzed alkylations of indoles with aliphatic amines proceeding under transfer hydrogenation conditions are developed (see scheme). This reaction is based on the borrowing hydrogen methodology.
General and Selective C-3 Alkylation of Indoles with Primary Alcohols by a Reusable Pt Nanocluster Catalyst
作者:S. M. A. Hakim Siddiki、Kenichi Kon、Ken-ichi Shimizu
DOI:10.1002/chem.201302464
日期:2013.10.18
The platinum rule: Heterogeneous, additive‐free C‐3 selectivealkylation of indoles by aliphatic and aromatic alcohols proceeded under transfer hydrogenation conditions with the reusablePt/θ‐Al2O3 catalyst (see scheme; TON=turnover number).
铂规则:异构,通过转移氢化的条件下进行与可重复使用的Pt /θ-Al系的脂肪族和芳族醇吲哚不含添加剂的C-3选择性烷基化2 ö 3催化剂(参见方案; TON =周转数)。
Nickel-catalyzed C3-alkylation of indoles with alcohols <i>via</i> a borrowing hydrogen strategy
作者:Miao Hu、Yong Jiang、Nan Sun、Baoxiang Hu、Zhenlu Shen、Xinquan Hu、Liqun Jin
DOI:10.1039/d1nj01581h
日期:——
An efficient Ni-catalyzed C3-alkylation of indoles with alcohols via a borrowing hydrogen pathway was achieved utilizing an N,O-donor coordinated nickel complex as the precatalyst.
Efficient copper-catalyzed synthesis of C3-alkylated indoles from indoles and alcohols
作者:Ngoc-Khanh Nguyen、Duong Ha Nam、Ban Van Phuc、Van Ha Nguyen、Quang Thang Trịnh、Tran Quang Hung、Tuan Thanh Dang
DOI:10.1016/j.mcat.2021.111462
日期:2021.4
A highly efficient copper(II) catalyst system for alkylation of indoles with alcohols via hydrogen borrowing method has been developed to afford C3-alkylated indoles in good to excellent yields. Cu(OAc)2 in the combination with dppm ligand has been found to be the most suitable catalyst system for this alkylation reaction.