Heterogeneous photocatalytic cyanomethylarylation of alkenes with acetonitrile: synthesis of diverse nitrogenous heterocyclic compounds
作者:Guanglong Pan、Qian Yang、Wentao Wang、Yurong Tang、Yunfei Cai
DOI:10.3762/bjoc.17.89
日期:——
photocatalytic cyanomethylarylation of alkenes with acetonitrile has been established using K-modified carbon nitride (CN-K) as a recyclable semiconductor photocatalyst. This protocol, employing readily accessible alkyl N-hydroxyphthalimide (NHPI) ester as a radical initiator, allows the efficient construction of a broad array of structural diverse nitrogenous heterocyclic compounds including indolines, oxindoles
使用 K 改性氮化碳(CN-K)作为可回收半导体光催化剂,建立了可见光介导的烯烃与乙腈的异相光催化氰甲基芳基化反应。该方案采用易于获得的烷基N-羟基邻苯二甲酰亚胺 (NHPI) 酯作为自由基引发剂,可以有效构建多种结构多样的含氮杂环化合物,包括二氢吲哚、羟吲哚、异喹啉酮和异喹啉二酮。
Fe-promoted radical cyanomethylation/arylation of arylacrylamides to access oxindoles via cleavage of the sp<sup>3</sup> C–H of acetonitrile and the sp<sup>2</sup> C–H of the phenyl group
作者:Changduo Pan、Honglin Zhang、Chengjian Zhu
DOI:10.1039/c4ob02172j
日期:——
Radical cyanomethylation/arylation of arylacrylamides to access oxindoles with acetonitrile as the radical precursor is described. This reaction involves dualC–H bond functionalization, including the sp3 C–H of acetonitrile and the sp2 C–H of the phenyl group. A variety of functional groups, such as methoxy, ethyloxy carbonyl, chloro, bromo, iodo, nitro, trifluoromethoxy and trifluoromethyl groups
Azo-Compound-Mediated Cyanoalkylation of Alkenes by Copper Catalysis: General Access to Cyano-Substituted Oxindoles
作者:Shi Tang、Dong Zhou、Zhi-Hao Li、Mei-Jun Fu、Li Jie、Rui-Long Sheng、Shu-Hua Li
DOI:10.1055/s-0034-1379902
日期:2015.6
access to therapeutically important cyano-substituted oxindoles. A practical and highly efficient azo-compound-mediated/ promoted radical cyanoalkylation of activatedalkenes by copper catalysis was developed, which allowed for general synthesis of oxindoles bearing various nitrile moieties, especially the rarely reported 3° nitrile moiety via cascade radical addition/C(sp2)–H cyclization. This protocol
[EN] SUBSTITUTED DIARYLALKYL AMIDES AS CALCIUM CHANNEL ANTAGONISTS<br/>[FR] AMIDES DE DIARYLALKYLE SUBSTITUES EN TANT QU'ANTAGONISTES DE CANAUX CALCIQUES
申请人:WARNER-LAMBERT COMPANY
公开号:WO1999055688A1
公开(公告)日:1999-11-04
(EN) The present invention provides compounds that block calcium channels and have Formula (I). The present invention also provides pharmaceutical compositions containing the compounds of Formula (I) and methods of using them to treat stroke, cerebral ischemia, head trauma, and epilepsy.(FR) L'invention concerne des composés de formule (I) inhibant les canaux calciques. L'invention concerne également des compositions pharmaceutiques renfermant les composés de formule (I) et leurs procédés d'utilisation pour traiter les accidents cérébrovasculaires, l'ischémie cérébrale, des traumatismes crâniens et l'épilepsie.
A novel and practical DIAD-promoted oxidative cyanomethylation of alkenes with acetonitrile by copper catalysis was developed, in which oxindoles bearing a nitrile moiety at the 3-position were synthesized efficiently via dual C-H bond cleavage of an arene and acetonitrile. This protocol demonstrated that DIAD served as a new promoter instead of commonly encountered AgF or base for the C-sp3-H functionalization of acetonitrile for the first time. (C) 2015 Elsevier Ltd. All rights reserved.