Metal catalyst-free photo-induced alkyl C–O bond borylation
作者:Guobin Ma、Changzhou Chen、Sangita Talukdar、Xinluo Zhao、Chuanhu Lei、Hegui Gong
DOI:10.1039/d0cc04776g
日期:——
Metal catalyst free, blue visible light-induced C–O bond borylation of unactivated tertiary alkyl methyl oxalates has been developed to furnish tertiary alkyl boronates. From the secondary alcohols activated with imidazolylthionyl, moderate yields of boronates were attained under standard photo-induced conditions. Preliminary mechanisticstudies confirmed the involvement of a (DMF)2–B2cat2 adduct that
Electrochemical synthesis of 2-alkyl-4-phenylalkan-2-ols <i>via</i> cathodic reductive coupling of alkynes with unactivated aliphatic ketones
作者:Anil Balajirao Dapkekar、Gedu Satyanarayana
DOI:10.1039/d2cc06819b
日期:——
Herein, we present an efficient electrochemical method for synthesizing 2-alkyl-4-phenylalkan-2-ols through an electrochemically driven cathodic reductive coupling of the terminal and internal acetylenes with unactivated aliphatic ketones under mild conditions. The process proceeds through a ketyl radical, which then activates the aryl acetylene and causes complete reduction of the triple bond of the acetylene