Process for making .gamma.-butyrolactones

Details Process for making .gamma.-butyrolactones Process for making .gamma.-butyrolactones

1994-02-28

1995-03-28

Ivy, C. Warren

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D30728

Patent

active

054018579

ABSTRACT:
A cyclocarbonylation process for making .gamma.-butyrolactones under mild temperature and pressure conditions is disclosed. In the process, an allylic alcohol reacts with carbon monoxide in the presence of a rhodium carbonyl catalyst and an amount of a pyridine promoter effective to enhance the selectivity of the process for making the .gamma.-butyrolactone product. The process provides a way of making .gamma.-butyrolactone from allyl alcohol as the only C4 product.

REFERENCES:
patent: 3061614 (1962-10-01), Sweeney et al.
patent: 3952020 (1976-04-01), Stapp
patent: 4301090 (1981-11-01), Pesa et al.
patent: 4331612 (1982-05-01), Pesa et al.
patent: 4451407 (1984-05-01), Pesa et al.
patent: 4634780 (1987-01-01), Alper et al.
Chemistry Letters (1983) 1465-1466.
Alper et al., J. Org. Chem 56 (1991) 5357-5360.
Falbe Ang. Chem. Int. Ed. Eng. 5 (1966) 435-532.

Affiliated with

Also associated with

Rating

Process for making .gamma.-butyrolactones 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 making .gamma.-butyrolactones, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for making .gamma.-butyrolactones will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2251477