SmI2-mediated facile one-pot preparation of 2,4-diarylquinolines from 3-aryl-2,1-benzisoxazoles
摘要:
Oil treatment with SmI2, 3-aryl-2, 1-benzisoxazoles undergo reductive cleavage of the N-O bond leading to 2-aminobenzophenones in high yields upon protonation. If aryl methyl ketones are added to the reaction mixture prior to protonation, the desired 2,4-diarylquinolines can be obtained in moderate yields under mild conditions. (C) 2002 Elsevier Science Ltd. All rights reserved.
Rhodium-Catalyzed Amination and Annulation of Arenes with Anthranils: C-H Activation Assisted by Weakly Coordinating Amides
作者:Manman Wang、Lingheng Kong、Fen Wang、Xingwei Li
DOI:10.1002/adsc.201700899
日期:2017.12.19
A rhodium(III)‐catalyzed C−H amination of benzamides and isoquinolones with anthranils has been realized under assistance of weakly coordinating amide, leading to a bifunctionalized amination product which can further cyclize to acridine under in situ or ex situ conditions.
Synthesis of nitroacridinones from 2,1-benzisoxazole derivatives
作者:V. Yu. Orlov、V. V. Ganzha、A. D. Kotov、V. G. Sokolov
DOI:10.1134/s1070428007100168
日期:2007.10
Reaction of 3-aryl-2,1-benzisoxazoles with concentrated nitric acid in chloroform in one stage led to their conversion into acridinone nitro derivatives.
Metal-Free, Visible-Light-Enabled Direct C3–H Arylation of Anthranils
作者:Tapas Adak、Chao Hu、Matthias Rudolph、Jun Li、A. Stephen K. Hashmi
DOI:10.1021/acs.orglett.0c01999
日期:2020.7.17
disodium salt-catalyzed photoredox C–H arylation of anthranils is reported. A variety of aryl diazonium tetrafluoroborates were used as aryl sources, providing the C3 cross-coupled products. The in situ generated reactive radicals were trapped by anthranils, providing an alternative method to transition-metal-catalyzed C–H arylations of anthranils. Gold-catalyzed downstream transformations demonstrate
SmI2-mediated facile one-pot preparation of 2,4-diarylquinolines from 3-aryl-2,1-benzisoxazoles
作者:Xuesen Fan、Yongmin Zhang
DOI:10.1016/s0040-4039(02)01583-6
日期:2002.9
Oil treatment with SmI2, 3-aryl-2, 1-benzisoxazoles undergo reductive cleavage of the N-O bond leading to 2-aminobenzophenones in high yields upon protonation. If aryl methyl ketones are added to the reaction mixture prior to protonation, the desired 2,4-diarylquinolines can be obtained in moderate yields under mild conditions. (C) 2002 Elsevier Science Ltd. All rights reserved.