| 摘要 |
Tricyclo [2,2,1,0<2><,><6>]heptane derivatives of the general formula
<CHEM>
where X represents -CH2CH2- or
<CHEM>
and R<1> and R<2> independently represent hydrogen or methyl, are disclosed, together with perfume compositions in which the derivatives are principal ingredients. A process of making the derivatives involves reacting a tricyclo[2,2,1,0<2,6>]heptane aldehyde with a dialkyl ketone in the presence of an aldol condensation catalyst to form an alpha , beta -unsaturated ketone, followed by reducing this ketone in manner which reduces the carbonyl group but not the C=C bond. |
