Vandewalle,M.; Compernolle,F., Bulletin des Societes Chimiques Belges, 1966, vol. 75, p. 349 - 357
作者:Vandewalle,M.、Compernolle,F.
DOI:——
日期:——
Jondiko, Isaac J. O.; Pattenden, Gerald, Journal of the Chemical Society. Perkin transactions I, 1983, # 2, p. 467 - 470
作者:Jondiko, Isaac J. O.、Pattenden, Gerald
DOI:——
日期:——
Synthesis of calythrone and related cyclopentene-1,3-diones via rearrangement of 4-ylidenebutenolides
作者:Nicholas G. Clemo、David R. Gedge、Gerald Pattenden
DOI:10.1039/p19810001448
日期:——
Treatment of 4-ylidenebutenolides with sodium methoxide in methanol results in rearrangement to the corresponding cyclopentene-1,3-diones in high yield. The general method is applied in a synthesis of calythrone [(1) from (18)] from Calythrix tetragona, and the relatedcyclopentene-1,3-diones [(15) from (14); (25) from (24); (27) from (26); (33) from (32); and (37) from (36)].