Nitrile Synthesis through Catalyzed Cascades Involving Acid–Nitrile Exchange
作者:Laurent El Kaïm、Laurence Grimaud、Roland Jacquot、Philippe Marion、Damien Cartigny、Aurélie Dos Santos
DOI:10.1055/s-0033-1341227
日期:——
Abstract Irreversible acid–nitrileexchangereactions using both glutaronitrile and (phenylsulfonyl)acetonitrile may be catalyzed by Lewis acids. Whereas a cyclization towards imides displaces the equilibria in the reaction with dinitriles, a decarboxylation step is involved when using the (phenylsulfonyl)acetonitrile. Irreversible acid–nitrileexchangereactions using both glutaronitrile and (phe
A Germanium Catalyst Accelerates the Photoredox α-C(sp<sup>3</sup>)–H Alkylation of Primary Amines
作者:Kentaro Sakai、Kounosuke Oisaki、Motomu Kanai
DOI:10.1021/acs.orglett.2c00871
日期:2022.5.13
photoredox catalysis (PC) and hydrogen atom transfer (HAT) catalysis have received increasing attention. Here, we report a Ph2GeCl2 cocatalyst that greatly improves the yield of α-C(sp3)–H alkylation of primaryamines catalyzed by a PC-HAT hybrid system. The α-position of the amino group selectively reacted even when weaker C–H bonds existed in the substrates. This finding may help the design of a novel