Direct alkylation of heteroarenes with unactivated bromoalkanes using photoredox gold catalysis
作者:T. McCallum、L. Barriault
DOI:10.1039/c6sc00807k
日期:——
A protocol for direct C-H alkylation of heteroarenes was developed using photoredox catalysis as a mode of activation for unactivated bromoalkanes. Dimeric Au(I) complex, [Au2(dppm)2]Cl2, served as an efficient photocatalyst for this transformation.
A Metal-Free Approach for Brønsted Acid Promoted C–H Alkylation of Heteroarenes with Alkyl Peroxides
作者:Bo Qian、Hongli Bao、Yuehua Zeng、Yajun Li
DOI:10.1055/s-0037-1609965
日期:2018.8
for Minisci C–H alkylation of heteroarenes using alkyl peroxides as the alkylating reagents and internal oxidants simultaneously under promotion of Brønsted acid has been demonstrated. A series of alkyl substituted heteroarenes were readily prepared by the C–H alkylation in moderate to good yields. A possible pathway involving the addition of alkyl radical to heterocycle followed by rearomatization