Journal of Organic Chemistry p. 4479 - 4483 (1980)
Update date:2022-08-05
Topics:
Williams, John R.
Callahan, James F.
Photocycloaddition of methyl cyclobutenecarboxylate (1b) to (-)-piperitone (2) affords the photoadduct 3b.Sodium cyanoborohydride reduction of 3b affords the lactone 4 which upon thermolysis yields the cis-1(10)-trans-4-germacrene 5.Flash vacuum pyrolysis
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