Palladium-Catalyzed Oxidative Arylalkylation of Unactivated Alkenes: Dual C–H Bond Cleavage of Anilines and Acetonitrile
摘要:
A palladium-catalyzed oxidative arylalkylation of unactivated alkenes involving dual C-H bond cleavage of arene and acetonitrile was developed. This reaction was promoted by pyridine as a ligand, and the ratio of palladium to pyridine is vital for this transformation. A series of nitrile-containing indolines were efficiently provided in moderate to good yields.
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。
Copper-Catalyzed Cascade Denitrogenative Transannulation/Hydrolyzation of 3-Aminoindazoles toward 2,2-Disubstituted Indanones
作者:Jiangang Teng、Song Sun、Jin-Tao Yu、Jiang Cheng
DOI:10.1021/acs.joc.9b02303
日期:2019.12.6
A copper-catalyzed cascade denitrogenative transannulation/hydrolyzation of 3-aminoindazoles with N-(2-methylallypanilines was developed, affording a variety of 2-(aminomethyl)-2-methyl-indanones in moderate to good yields. 2-Cyanophenyl radical, which generated from oxidative denitrogenation of 3-aminoindazole, was proved as the reaction intermediate. This reaction features, along with the ready availability of starting materials, a cascade cleavage of two C-N bonds and construction of two C-C bonds in one pot.