Synthesis of 3‐Unsubstituted Phthalides from Aryl Amides and Paraformaldehyde via Ruthenium(II)‐Catalyzed C–H Activation
作者:Chao Zhou、Junqi Zhao、Wenkun Chen、Mukhtar Imerhasan、Jun Wang
DOI:10.1002/ejoc.202001160
日期:2020.11.8
A straightforward and convenient route has been developed for the synthesis of 3‐unsubstituted phthalide derivatives from aryl amides and paraformaldehyde by ruthenium(II)‐catalyzedC–Hactivation. The reaction proceeds through tandem ortho‐hydroxymethylation of aryl amide and subsequent intramolecular lactonization.
PRODUCTION METHOD OF HALOGEN-SUBSTITUTED PHTHALIDE
申请人:Hagiya Koji
公开号:US20120142946A1
公开(公告)日:2012-06-07
Disclosed is a method for producing a halogen-substituted phthalide, which includes a reaction step of reacting a halogen-substituted phthalic anhydride with sodium borohydride.