Visible-light-mediated benzylic sp3 C–H bond functionalization to C–Br or C–N bond
摘要:
A visible-light-promoted functionalization of unactivated benzylic sp(3) C-H bonds was developed. Ethylbenzene derivatives were converted to the corresponding benzyl bromides or afforded benzylamine derivatives in a one-pot manner under visible light photoredox conditions. (C) 2016 Elsevier Ltd. All rights reserved.
Additions of 1-(.alpha.-aminoalkyl)benzotriazoles to enol ethers. New routes to 1,3-amino ethers
作者:Alan R. Katritzky、Stanislaw Rachwal、Bogumila Rachwal、Peter J. Steel
DOI:10.1021/jo00044a031
日期:1992.8
1-(alpha-Aminoalkyl)benzotriazoles add readily to enol ethers to give the corresponding 1-benzotriazolyl-3-aminoalkyl ethers in high yields. Subsequent replacement of the benzotriazole moiety by an alkyl or aryl group (with a Grignard reagent) or by a hydrogen atom (with lithium aluminum hydride) affords 1,3-amino-ethers in good yields. Anchimeric assistance by the amino groups in the substitutions of the benzotriazolyl moiety facilitates the reactions. Full stereochemistry is assigned to the stereoisomeric products on the basis of NMR techniques and X-ray diffraction.
Visible-light-mediated benzylic sp3 C–H bond functionalization to C–Br or C–N bond
作者:Tianyuan Hou、Ping Lu、Pixu Li
DOI:10.1016/j.tetlet.2016.04.036
日期:2016.5
A visible-light-promoted functionalization of unactivated benzylic sp(3) C-H bonds was developed. Ethylbenzene derivatives were converted to the corresponding benzyl bromides or afforded benzylamine derivatives in a one-pot manner under visible light photoredox conditions. (C) 2016 Elsevier Ltd. All rights reserved.