Preparation of unsaturated monester precursor for pelargonic aci

Details Preparation of unsaturated monester precursor for pelargonic aci Preparation of unsaturated monester precursor for pelargonic aci

1980-11-24

1982-03-09

Niebling, John F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260409, 2604109R, C07C 1500

Patent

active

043188605

ABSTRACT:
A process for producing unsaturated methyl nonadienoate and methyl nonatrienoate monesters useful as precursors for pelargonic acid which comprises contacting, in a reaction inert medium, butadiene and methyl-2,4-pentadienoate in a molar ratio of 2:1 to 10:1 at a temperature of 40.degree. to 120.degree. C. under an inert atmosphere and in the presence of a catalytic amount of a homogeneous palladium (II) complex of the formula ##STR1## wherein R is alkyl, chloroalkyl, bromoalkyl or fluoroalkyl having from 1 to 6 carbon atoms or aryl having 6 to 12 carbon atoms; Q is phosphorous or arsenic and R' is alkyl, aminoalkyl or alkoxy having 1 to 6 carbon atoms or aryl or aryloxy having 6 to 12 carbon atoms.
The foregoing precursors may subsequently be hydrogenated to methyl pelargonate (methyl nonanoate) and pelargonic acid may then be obtained by acid-catalyzed hydrolysis of methyl pelargonate.

REFERENCES:
patent: 3676470 (1972-07-01), Takahashi
patent: 3891684 (1975-06-01), Jung
patent: 4053503 (1977-10-01), Burba

Affiliated with

Also associated with

Rating

Preparation of unsaturated monester precursor for pelargonic aci does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Preparation of unsaturated monester precursor for pelargonic aci, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preparation of unsaturated monester precursor for pelargonic aci will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1840186