C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/359.3
C07D 311/76 (2006.01) C07D 311/00 (2006.01) C07D 311/94 (2006.01) C07D 315/00 (2006.01)
Patent
CA 1308111
ABSTRACT A method for making a bicyclic lactone comprising heating under aqueous acidic conditions a beta, gamma unsaturated cyclic nitrile of the formula Image wherein R3, R4, R5, and R6 are independently selected from the group consisting of -H, -CH3; R2 is selected from the group consisting of -H, -CH3, and -C2H5: R8 is -H or -CH3; m is an integer from 1 to 5; o is 0, 1, 2, or 3 and p is 0, 1, or 2; provided that the sum m + o + p is an integer from 3 to 5; and an aldehyde having the formula Image wherein R1 is selected from the group consisting of -H and -CH3, for a length of time sufficient to convert at least a portion of the reactants to a bicyclic lactone of the formula Image wherein R1,R2, R4, R5, R6, m, o, and p are as defined above, R3 is -CH3, or if R8 is hydrogen, R3 together with R7 represents a carbon-carbon bond, R7 together with either R3 or R8 represents a carbon- carbon bond, and R8 is -H, or if R3 is -CH3, R8 together with R7 represents a carbon-carbon bond.
515973
Coulston Craig
Korte Friedhelm
Korte Stephan
Angus Chemical Company
Coulston Craig
Coulston International Corporation
Korte Friedhelm
Korte Stephan
LandOfFree
Method for making bicyclic lactones does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for making bicyclic lactones, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for making bicyclic lactones will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1294276