Perfumery compounds and their preparations

Details Perfumery compounds and their preparations Perfumery compounds and their preparations

C - Chemistry, Metallurgy

07

C

167/321

C07C 45/66 (2006.01) C07C 45/72 (2006.01) C07C 45/74 (2006.01) C07C 49/203 (2006.01) C11B 9/00 (2006.01)

Patent

CA 1270203

ABSTRACT PERFUMERY COMPOUNDS AND THEIR PREPARATION Useful perfumery compounds have the formula Image where there is a double bond in one of the 5,6 or 6,7 or 7,8 positions. The compounds may be made by reaction of 2-methyl-pentan-4-one with isobutyraldehyde followed by dehydration, preferably in the presence of a weak acid.

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