The present invention relates to 3-ketocoumarines which can be used as photoinitiators in LED photocuring and to a process for curing compositions comprising said 3-ketocoumarines.
[EN] 3-KETOCOUMARINES FOR LED PHOTOCURING<br/>[FR] 3-CÉTOCOUMARINES POUR PHOTODURCISSEMENT À DIODE ÉLECTROLUMINESCENTE (DEL)
申请人:LAMBERTI SPA
公开号:WO2014063997A1
公开(公告)日:2014-05-01
The present invention relates to 3-ketocoumarines which can be used as photoinitiators in LED photocuring and to a process for curing compositions comprising said 3-ketocoumarines.
Metal-Free, Regioselective, Dehydrogenative Cross-Coupling between Formamides/Aldehydes and Coumarins by C-H Functionalization
作者:Mohit Gupta、Prashant Kumar、Vijay Bahadur、Krishan Kumar、Virinder S. Parmar、Brajendra K. Singh
DOI:10.1002/ejoc.201701764
日期:2018.2.21
A general methodology for the regioselective C‐3 functionalization of coumarins and azacoumarins by using formamides and aldehydes has been achieved in a single step with tert‐butyl peroxybenzoate as a radical initiator. This methodology provides a convenient and cost‐effective route to the products under metal‐free conditions with excellent regioselectivity and wide substrate scope.