The amination of 2-chloropyrimidines was performed with several aniline derivatives in the presence of tolylzinc bromide as a base. The organozinc compound has a profound effect on the reactivity of the amines, so that the reaction takes place at room temperature. Further studies gave insight into the reaction mechanism and favor a nucleophilic substitution over a catalytic process.
Fors, Brett P.; Davis, Nicole R.; Buchwald, Stephen L., Journal of the American Chemical Society, 2009, vol. 131, p. 5766 - 5768
作者:Fors, Brett P.、Davis, Nicole R.、Buchwald, Stephen L.
DOI:——
日期:——
[EN] TYROSINE KINASE INHIBITORS<br/>[FR] INHIBITEURS DE LA TYROSINE KINASE
申请人:MERCK & CO INC
公开号:WO2003011837A1
公开(公告)日:2003-02-13
The present invention relates to compounds which inhibit, regulate and/or modulate tyrosine kinase signal transduction, compositions which contain these compounds, and methods of using them to treat tyrosine kinase-dependent diseases and conditions, such as angiogenesis, cancer, tumor growth, atherosclerosis, age related macular degeneration, diabetic retinopathy, inflammatory diseases, and the like in mammals.
The Direct Rh(III)-Catalyzed C–H Amidation of Aniline Derivatives Using a Pyrimidine Directing Group: The Selective Solvent Controlled Synthesis of 1,2-Diaminobenzenes and Benzimidazoles
作者:Shrikant M. Khake、Naoto Chatani
DOI:10.1021/acs.orglett.0c01126
日期:2020.5.1
The regioselective Rh(III)-catalyzed C-Hamidation of aniline derivatives with dioxazolones as an amidating reagent with a pyrimidine as a directing group leading to the production of 1,2-diaminobenzene derivatives or benzimidazole derivatives is described. The product distribution is controlled by the nature of solvent used. The reaction provides a broad substrate scope for aniline derivatives with
anilines is herein reported. The reaction tolerates a broad range of aniline derivatives and provides a convenient approach for accessing the corresponding para/meta-selective difluoroalkylated products. Mechanism studies demonstrated that the initial CAr–H and N–H cycloruthenation is the pivotal step in achieving remote C–H difluoroacetylation.
本文报道了钌催化的苯胺的对位和间-二氟烷基化的替代反应。该反应可耐受各种苯胺衍生物,并提供了一种方便的方法来获得相应的对/间选择性二氟烷基化产物。机理研究表明,最初的C Ar –H和N–H环钌化是实现远程C–H二氟乙酰化的关键步骤。