Divergent strategy for the chemoselective synthesis of N-Arylbenzimidazoles and N-Arylindazoles from arylamino oximes
摘要:
An efficient and divergent synthesis of N-arylbenzimidazoles and N-arylindazoles from arylamino oximes based on reaction conditions selection was developed. The synthesis was approached by treating oximes with BTC and the chemoselectivity was regulated by the amount of Et3N. This switchable N-N and N-C bond formation process features mild reaction conditions, simple execution, high chemoselectivity and broad substrate scope. (C) 2020 Elsevier Ltd. All rights reserved.
Copper-Catalyzed Aerobic Oxidative CH and CC Functionalization of 1-[2-(Arylamino)aryl]ethanones Leading to Acridone Derivatives
作者:Jipan Yu、Haijun Yang、Yuyang Jiang、Hua Fu
DOI:10.1002/chem.201204169
日期:2013.3.25
Efficient copper‐catalyzedaerobicoxidative CH and CC functionalization of 1‐[2‐(arylamino)aryl]ethanones leading to acridones has been developed. The procedure involves cleavage of aromatic CH and acetyl CC bonds with intramolecular formation of a diarylketone bond. The protocol uses inexpensive Cu(O2CCF3)2 as catalyst, pyridine as additive, and economical and environmentally friendly oxygen
Synthesis of <i>N</i>-Arylindazoles and Benzimidazoles from a Common Intermediate
作者:Brenda C. Wray、James P. Stambuli
DOI:10.1021/ol101899q
日期:2010.10.15
A variety of N-aryl-1H-indazoles and benzimidazoles were synthesized from common arylamino oximes in good to excellent yields The product selectivity depends upon the base used in the reaction, as triethylamine promoted the formation of benzimidazoles, whereas 2-aminopyridine promoted the formation of N-arylindazoles This method is valuable to the synthetic community because both indazoles and benzimidazoles are prevalent in pharmaceuticals
PYRROLO[2,3-d]PYRIMIDINES AND THEIR USE
申请人:Novartis AG
公开号:EP0783505B1
公开(公告)日:2001-03-07
US5869485A
申请人:——
公开号:US5869485A
公开(公告)日:1999-02-09
[EN] PYRROLO[2,3-d]PYRIMIDINES AND THEIR USE<br/>[FR] PYRROLO[2,3-d]PYRIMIDINES ET LEUR UTILISATION
申请人:NOVARTIS AG
公开号:WO1996010028A1
公开(公告)日:1996-04-04
(EN) Pyrrolo[2,3-d]pyrimidines of formula (I) in which R1, R2 and R3 are as defined in the description, have useful pharmaceutical properties and are particularly effective as inhibitors of the protein tyrosine kinase pp60c-src. They are prepared in a manner known per se.(FR) Pyrrolo[2,3-d]pyrimidines de formule (I) dans laquelle R1, R2 et R3 sont tels que définis dans la description. Ces composés possèdent des propriétés pharmacologiques utiles; ils sont notamment efficaces en tant qu'inhibiteurs de la tyrosine kinase pp60c-src et sont préparés d'une manière connue en soi.