[EN] PROCESS FOR THE PREPARATION OF PHENYLMALONIC ACID DINITRILES<br/>[FR] PROCEDE DE PREPARATION DE DINITRILES D'ACIDE PHENYLMALONIQUE
申请人:SYNGENTA PARTICIPATIONS AG
公开号:WO2004050607A1
公开(公告)日:2004-06-17
Phenylmalonic acid dinitriles are prepared by reaction of, for example, phenyl Kalides with malonic acid dinitrile in the presence of palladium catalysts and bases.
苯丙二腈是通过苯基卡利德与丙二腈在钯催化剂和碱存在下反应制备的。
Chemo-divergent Cyano Group Migration: Involving Elimination and Substitution of the Key α-Thianthrenium Cyano Species
Herein, we report a light-driven, radical-type cyano migration in the absence of a photocatalyst, enabling a chemo-divergent synthesis of (Z)-alkenyl nitriles and ketones. Trifluoromethyl thianthrenium salt (TT–CF3+OTf–) plays multiple roles: (a) absorbing light to generate trifluoromethyl radicals to initiate the reaction and (b) forming α-thianthrenium cyano species by in situ capture of TT• +. (Z)-Alkenyl