New spirocyclic compounds

Details New spirocyclic compounds New spirocyclic compounds

C - Chemistry, Metallurgy

07

C

C07C 49/557 (2006.01) C07C 45/51 (2006.01) C07C 69/753 (2006.01) C11B 9/00 (2006.01) C11D 3/50 (2006.01)

Patent

CA 2249663

The new spirocyclic compounds of the general formula (I): Image are powerful odorants. In the formula the -C(O)X-substituted ring is saturated or unsaturated in the .alpha. or .beta. position, and X represents a methylene group or an oxygen atom, R1, R2, R3, R4 are independently a hydrogen atom or a methyl radical, n or n' are independently 1 or 2 and R4 can be at any position on the ring not being the -C(O)X substituted ring.

Les nouveaux composés spirocycliques de formule générale I Image sont des odorisants puissants. Dans la formule, le cycle avec substitution par -C(O)X- est saturé ou non saturé en position alpha ou bêta; X représente un groupe méthylène ou un atome d'oxygène; R1, R2, R3 et R4 sont indépendamment un atome d'hydrogène ou un radical méthyle; n ou n' sont indépendamment 1 ou 2; enfin, R4 peut se trouver à n'importe quelle position sur le cycle, mais ne peut être le cycle avec substitution par -C(O)X.

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