Yodhathai ThebtaranonthMahidol University2018-02-272018-02-271986-01-01Pure and Applied Chemistry. Vol.58, No.5 (1986), 781-78813653075003345452-s2.0-0022713645https://repository.li.mahidol.ac.th/handle/20.500.14594/9697A new and simple method has been developed for the preparation of a-methylene cyclopentenones and presently provides the most convenient route to sarkomycin. The work has, in addition, led to a better understanding of the vinylogous Dieckmann condensation, the course of Michael addition to a-methylene cyclopentenones and the behavior of cyclopentenoid endocyclic and exocyclic dienolates towards electrophiles. © 1986 IUPACMahidol UniversityChemical EngineeringChemistryArticleSCOPUS10.1351/pac198658050781