A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, Recommanded Product: Cinnamic acid(only trans), but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 621-82-9, Name is Cinnamic acid(only trans), molecular formula is C9H8O2. In an article, author is Jena, Tapan Kumar,once mentioned of 621-82-9.
FeCl3 catalyzed intermolecular reaction between enol ethers and anilines: Access to 2,3-substituted indoles through aryl group migration
An intermolecular FeCl3 catalyzed reaction between anilines and enol ethers is described. A variety of enol ethers and aromatic amines undergo a C-C bond formation followed by cyclization via C-N bond formation to afford the 2,3-disubstituted indoles, involving an unexpected aryl group migration. In this methodology, anilines act as bis-nucleophiles, wherein the initial attack occurs at the alpha-position of enol ether from the ortho position of aniline followed by the subsequent reaction of the amine moiety of aniline at the beta-position, leading to the indole framework. This method is simple, obviates the use of expensive/hazardous transition-metal catalysts, and offers a wide range of substrate scope. (C) 2020 Elsevier Ltd. All rights reserved.
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Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles