Synthesis of Annulated 4-Alkylidenebutenolides from Natural Occurring Diosphenols
作者:David F. Schneider、Murray S. Viljoen
DOI:10.1080/00397919708005635
日期:1997.10
Diosphenol(3) and Psi-diosphenol (4), two constituents of the essential oil from the buchu plant, Borosma betulina (Bartl.), were utilized for the synthesis of the anulated 4-ylidenebutenolides (5) and (6).