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Asymmetric total synthesis of stoechospermol using intramolecular (2+2) photocycloaddition reaction

✍ Scribed by Masahide Tanaka; Kiyoshi Tomioka; Kenji Koga

Publisher: Elsevier Science
Year: 1985
Tongue: French
Weight: 234 KB
Volume: 26
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(00)98611-8

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✦ Synopsis

The first asymmetric total synthesis of stoechospermol, a representative spatane diterpene having G, anti, cis-tricycloC5.3.0.02*6ldecane ring system, was achieved. Using the intramolecular asymmetrifl22+2) photocycloaddition reaction of the diastereomeric ester 11, the readily available butenolide 9 was transformed into the optically active dilactone

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