C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/353.8
C07D 491/18 (2006.01) C07C 29/38 (2006.01) C07C 45/29 (2006.01) C07C 45/67 (2006.01) C07C 45/71 (2006.01) C07C 47/21 (2006.01) C07C 49/203 (2006.01) C07C 49/653 (2006.01) C07D 311/76 (2006.01) C07D 493/08 (2006.01) C07D 493/10 (2006.01)
Patent
CA 1198441
ABSTRACT New process for preparing the pheromone active compound lineatin (3,3,7-trimethyl-2,9-dioxatricyclo[3,3,1,04'7]- nonane), by reacting a 2,2-dimethyl-3,4-pentadienal of formula 1, in which R1 and R2 is each hydrogen or lower alkyl, with .beta.-methylallyl magnesium halide; the formed 2,5,5- trimethylocta-1,6,7-trien-4-ol derivative of formula 2 is subjected to oxidation which does not attack the double bonds; the formed 2,5,5-trimethylocta-1,6,7-trien-4-one derivative of formula 3 is subjected to pyrolysis; the formed 1,4,4- trimethyl-6-methylenebicyclo[3,2,0]heptan-3-one derivative of formula 4 is subjected to oxidation; the resulting 5,5,9-trimethyl-2,6-dioxa-7-oxo-bicyclo[4,2,0]octylspiro[2,7]- decane derivative of formula 5 is subjected to oxidation; the resulting 1,5,5-trimethyl-4-oxabicyclo[4,2,0]-octan-3,7- dione of formula 6 is reduced in a per se known manner to lineatin of formula 7. Compounds 2, 3, 4 and 5 are novel. Image Image 3 4 Image Image Image 6 7
449142
Skattebýl Lars
Stenstrým Yngve
Borregaard Industries Limited
Fetherstonhaugh & Co.
LandOfFree
Process for the preparation of lineatin does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for the preparation of lineatin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of lineatin will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1243293