PROCESS FOR THE PREPARATION OF alpha -METHYLENELACTONES AND alpha -SUBSTITUTED HYDROCARBYLIDENE LACTONES
摘要
This invention pertains to a process for making alpha -methylenelactones and alpha -substitued hydrocarbylidene lactones. The present invention obtains high yields of alpha -methylene- gamma -butyrolactone by heating gamma -butyrolactone and formaldehyde in the presence of a base.
申请公布号
WO0058298(A3)
申请公布日期
2001.03.08
申请号
WO2000US07879
申请日期
2000.03.24
申请人
E.I. DU PONT DE NEMOURS AND COMPANY;BRANDENBURG, CHARLES;MANZER, LEO, E.;KING, RANDAL
