摘要:
The synthesis of (+)-conocephalenol, a brasilane sesquiterpenoid alcohol, was achieved in seven steps from (R)-pulegone with an overall yield of 15%. The key steps were a radical addition of a tertiary radical to the electrophilic radicophile, (R)-3-methyl-2-methylenecyclopentanone, and an aldol cyclization under acidic conditions. (C) 1997 Elsevier Science Ltd.