Chemistry Letters p. 1153 - 1156 (1982)
Update date:2022-08-04
Topics:
Takeshita, Hitoshi
Hatsui, Toshihide
Kato, Nobuo
Masuda, Takeshi
Tagoshi, Hirotaka
Functionalized cyclopentane derivatives were prepared by the retro-ozonolysis of methyl 2,6-dioxoheptanoates, which are readily accessible from the photocycloaddition of methyl 2,4-dioxopentanoate with olefins.By this method, 3-isopropenyl-2-methoxycarbonyl-1-methylcyclopentene, a versatile intermediate to iridoid terpenoids, and 1-methoxycarbonyl-2,6,6-trimethylfulvene were synthesized from isoprene.Alternative syntheses of dl-dehydroiridodial and dl-chrysomelidial were accomplished.
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