An alternative route for synthesis of o-trifluoroacetylanilines as useful fluorine-containing intermediates
摘要:
A series of o-trifluoroacetyl aniline derivatives were synthesized in three steps. In this method, we first utilized trifluoroacetic anhydride to introduce trifluoroacetyl group to the ortho position of aniline with higher yield than that of some previously reported methods. In addition, the procedure is shown to be highly regiospecific. This type of compounds can be used as the key intermediates in the preparation of a variety of inhibitors of HIV reverse transcriptase which is an important pharmacological target of many anti-AIDS agents. (C) 2010 Elsevier B.V. All rights reserved.
The first proline-catalyzed Friedlander annulation for the synthesis of 2-substituted 4-trifluoromethyl quinoline derivatives is described. Excellent re gio selectivity as well as good yields were shown in a variety of cases, and a tandem aldol-cyclization pathway might be involved. ((c) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008).
Switchable Selectivity in the Annulation of <i>o</i>‐Trifluoroacetylanilines and Activated Terminal Alkynes Based on Transition Metal and Phosphine Catalysis
作者:Alexander Yu. Mitrofanov、Arina V. Murashkina、Konstantin A. Lyssenko、Irina P. Beletskaya
DOI:10.1002/chem.202302357
日期:2023.11.16
Based on Cu ang Ag catalysis as well as phosphine catalysis, we have developed efficient methods for the synthesis of three different types of CF3-substituted compounds (quinoline-3-carboxylates, quinoline-2-carboxylates, and indolines) from the same starting materials such as o-trifluoroacetylanilines and propiolates.
Zn(II)-Mediated Alkynylation−Cyclization of <i>o</i>-Trifluoroacetyl Anilines: One-Pot Synthesis of 4-Trifluoromethyl-Substituted Quinoline Derivatives
作者:Biao Jiang、Yu-Gui Si
DOI:10.1021/jo0204606
日期:2002.12.1
A novel efficient route to 4-trifluoromethyl-substituted quinoline derivatives through the Zn(II)-mediated alkynylation-cyclization of o-trifluoroacetyl anilines is described.