Use of allylic triflones for allylation of C-H bonds
摘要:
Allylic triflones react with THF and cyclohexane and related molecules to undergo a trifluoromethyl radical mediated C-H functionalization reaction. Due to polar effects, the reactions benefit from the presence of electron-withdrawing group at the 2-position of the allylic triflones. (C) 1998 Elsevier Science Ltd. All rights reserved.
Radical C(sp<sup>3</sup>)–H alkenylation, alkynylation and allylation of ethers and amides enabled by photocatalysis
作者:Subhasis Paul、Joyram Guin
DOI:10.1039/c7gc00840f
日期:——
enables selective incorporation of alkenyl, alkynyl and allyl functional groups into the C(sp3)–H bond under green reaction conditions is developed. The process is based on the catalytic formation of α-alkoxyl/α-amidyl radicals via the homolytic activation of the C(sp3)–H bond of ethers/amides with a catalytic amount of diarylketone in the presence of a household fluorescent light bulb. This simple reaction