使用连接的供体-受体分子光解羧酸：直接与介导的光致电子转移至N-烷基-4-吡啶鎓酯

Photolytic release of carboxylic acids using linked donor-acceptor molecules: direct versus mediated photoinduced electron transfer to N-alkyl-4-picolinium esters.

作者信息

Sundararajan Chitra, Falvey Daniel E

机构信息

Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, USA.

出版信息

Org Lett. 2005 Jun 23;7(13):2631-4. doi: 10.1021/ol050744n.

DOI:10.1021/ol050744n

PMID:15957908

Abstract

[reaction: see text] Efficient photorelease (Phi = 0.7) of carboxylic acids is achieved with a covalently linked mediator (benzophenone) protecting group (N-alkyl-4-picolinium ester) molecule. The mechanism involves initial photoreduction of the mediator, followed by rapid electron transfer to the protecting group.

摘要

[反应：见正文] 羧酸通过共价连接的介导剂（二苯甲酮）保护基团（N-烷基-4-吡啶鎓酯）分子实现高效光释放（Φ = 0.7）。其机制包括介导剂的初始光还原，随后快速电子转移至保护基团。