
Helvetica Chimica Acta p. 1527 - 1546 (1992)
Update date:2022-08-05
Topics:
Chapuis, Christian
Brauchli, Robert
In connection with structure-activity relationship studies, analogues of campholenal ((+)-4b), an important building block for sandalwood-like odorants, were prepared.The five-membered-ring analogues 4 were obtained by epoxidation of the corresponding α-pinene derivatives 2, followed by catalytic ZnBr2 isomerisation (Scheme 2).The six-membered-ring skeleton was obtained by ozonolysis of α-campholenyl acetate ((-)-14b), followed by intramolecular aldol condensation (Scheme 5). 13C-NMR assignments are given.
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