Process for preparing cinnamic acids and alkyl esters thereof
申请人:Wilken Joerg
公开号:US20050234261A1
公开(公告)日:2005-10-20
A process for producing cinnamic acids and alkyl esters thereof, particularly, fluorinated cinnamic acids and alkyl esters thereof. The process comprises reacting the appropriate bromobenzene and acrylic acid ester in a palladium-catalyzed HECK reaction under JEFFREY conditions using a phase-transfer catalyst (PTC) and an organic base to produce the corresponding cinnamic acid ester, and then preferably hydrolyzing the resulting ester under appropriate basic conditions, e.g. in the presence of a hydroxide, and precipitating the corresponding cinnamic acid product.
2-Hydroxy-1,10-phenanthroline vs 1,10-Phenanthroline: Significant Ligand Acceleration Effects in the Palladium-Catalyzed Oxidative Heck Reaction of Arenes
作者:Cheng-Hao Ying、Shao-Bai Yan、Wei-Liang Duan
DOI:10.1021/ol4033804
日期:2014.1.17
A series of bidentate monoanionic nitrogen ligands were designed and applied in the Pd-catalyzed oxidative Heck reaction of arenes with alkenes. Significant ligand-accelerated effects were observed, and direct C-H functionalized products were formed in high yields with meta-selectivity.
PROCESS FOR PREPARING CINNAMIC ACIDS AND ALKYL ESTERS THEREOF
申请人:Honeywell International, Inc.
公开号:EP1735262A1
公开(公告)日:2006-12-27
[EN] PROCESS FOR PREPARING CINNAMIC ACIDS AND ALKYL ESTERS THEREOF<br/>[FR] PROCEDE POUR PREPARER DES ACIDES CINNAMIQUES ET DES ALKYLESTERS DE CES ACIDES
申请人:HONEYWELL INT INC
公开号:WO2005105728A1
公开(公告)日:2005-11-10
A process for producing cinnamic acids and alkyl esters thereof, particularly, fluorinated cinnamic acids and alkyl esters thereof. The process comprises reacting the appropriate bromobenzene and acrylic acid ester in a palladium-catalyzed HECK reaction under JEFFREY conditions using a phase-transfer catalyst (PTC) and an organic base to produce the corresponding cinnamic acid ester, and then preferably hydrolyzing the resulting ester under appropriate basic conditions, e.g. in the presence of a hydroxide, and precipitating the corresponding cinnamic acid product.