Process for the preparation of tricyclic compounds, intermediates useful in said process, novel tricyclic compounds so prepared and the use thereof as odoriferous agents.

摘要

A process for the preparation of tricyclic compounds is described in which novel intermediate compounds of the general formula in which R represents hydrogen or alkyl having up to 5 carbons, the dotted line represents an optional carbon-carbon bond and OR min represents a leaving group is cyclised using an alkali metal in an organic solvent, followed, if desired, by hydrogenation to give compounds of the formulae Compounds of formula I and VI are useful as odoriferous agents having patchouli type odours and, with the exception of norpatchoulenol, are new.