Chemistry Letters p. 591 - 594 (1984)
Update date:2022-09-26
Topics:
Saito, Akira
Matsushita, Hajime
Kaneko, Hajime
Acid-catalyzed cyclization of homofarnesic acid was examined in detail.E,E- and Z,E-homofarnesic acid in dichloromethane cyclyzed by catalysis of boron trifluoride etherate at -20 deg C to afford trans-anti-trans and trans-syn-cis norambreinolide in 38percent and 52percent yield respectively.Cyclization mechanism was discussed.
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