PROCESS FOR THE PREPARATION OF alpha -METHYLENE LACTONES
摘要
This invention concerns a process for the addition of formaldehyde to the alpha carbon atom of lactones for the production of alpha -methylenelactones, and specifically alpha -methylene- gamma -butyrolactone.
申请公布号
WO0058297(A2)
申请公布日期
2000.10.05
申请号
WO2000US06958
申请日期
2000.03.16
申请人
E.I. DU PONT DE NEMOURS AND COMPANY;MANZER, LEO, E.;COULSON, DALE, ROBERT