A Palladium-Catalyzed Regioselective Hydroesterification of Alkenylphenols to Lactones with Phenyl Formate as CO Source
作者:Haining Wang、Ben Dong、Yang Wang、Jingfu Li、Yian Shi
DOI:10.1021/ol403171p
日期:2014.1.3
An effective Pd(OAc)2-PPh3 catalyzed hydroesterification of alkenylphenols with phenyl formate as CO surrogate is described. A variety of lactones are obtained in generally high yields with high regioselectivities. In one case, 76% ee is obtained with a chiral ligand.
Reaction de wittig en milieu heterogene solide-liquide : transformation directe des aldehydes phenoliques naturels en alcenes
作者:Yves Le Bigot、Michel Delmas、Antoine Gaset
DOI:10.1016/s0040-4039(00)81363-5
日期:1983.1
New alkenylphenols can be obtained directly, without protecting the phenol group from the condensation reaction between phenolic aldehydes and various phosphonium salts in the presence of potassium carbonate in protic and aprotic media, using a solid-liquid phase transfer.