Am. Moiseenkov et al., A NOVEL SYNTHESIS OF GUAIANE SESQUITERPENOIDS BASED ON ISOPRENYL-2-(2-METHOXYCARBONYLETHYL)CYCLOPENTANONE, Russian chemical bulletin, 42(1), 1993, pp. 113-118
Synthesis of six guaiane sesquiterpenoids was performed starting from
the title cyclopentanone. The structures of the sesquiterpenoids were
confirmed by spectral methods. X-ray analysis of the key hydroazulene
precursor was carried out.