Process for the manufacture of odorants and intermediates used t

Details Process for the manufacture of odorants and intermediates used t Process for the manufacture of odorants and intermediates used t

1992-07-24

1994-03-08

Ivy, C. Warren

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

558430, C07D30792, C07C25507

Patent

active

052929027

ABSTRACT:
The invention concerns a process for the manufacture of a mixture of (3a.alpha.,5a.beta.,9a.alpha.,9b.beta.)-dodecahydro-3a,6,6,9a-tetramethyln aphtho-[2,1-b]furan and (3a.alpha.,5a.beta.,9a.alpha.,9b.alpha.)-dodecahydro-3a,6,6,9a-tetramethyl naphtho[2,1-b]furan which utilizes the substituted hexenoic acids, 6-(2',6',6'-trimethyl-cyclohex-1'-en-1'-yl)-4-methyl-hex-2- or -3-enoic acid. The invention also concerns nitriles and a process for manufacture of the hexonic acids from the nitriles, having the formula ##STR1## wherein one of the bonds denotes a single bond and the other denotes a double bond, and, R represents hydrogen or the ester group COOR.sup.1 in which R.sup.1 represents a lower alkyl or aryl group.

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