Odorants and compositions comprising odorants

Compound(s) of formula (X) and/or of formula (Y1) and/or of formula (Y2)

• wherein R1 is an alkyl group having up to 6 carbon atoms or an alkenyl group having up to 6 carbon atoms or a phenyl group or a substituted phenyl group;
• R2 is H or an alkyl group having up to 6 carbon atoms or an alkenyl group having up to 6 carbon atoms;
• R3 is an alkyl group having up to 6 carbon atoms or an alkenyl group having up to 6 carbon atoms or a phenyl group or a substituted phenyl group and R4 is H or an alkyl group having up to 6 carbon atoms or an alkenyl group having up to 6 carbon atoms, with the proviso that (X) can't be 3,3,4-trimethyl-2,6-diphenyltetrahydro-2H-pyran-4-ol.