Preparation of resorcinol and substituted resorcinols by liquid-

Details Preparation of resorcinol and substituted resorcinols by liquid- Preparation of resorcinol and substituted resorcinols by liquid-

1982-04-26

1984-02-14

Lone, Werren B.

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

Organic compounds

Oxygen containing

C07C 3700

Patent

active

044318480

ABSTRACT:
A process is disclosed for making resorcinol and substituted resorcinols by a first reaction step of vapor-phase cyclization of a delta-keto carboxylic acid ester over a carbon catalyst bed to form a 1,3-cyclic dione intermediate. The delta-keto ester is conveyed through the catalyst bed by a vaporized carrier characterized by being liquid at 25.degree. C. and having a sufficiently high boiling point that the vaporized carrier is easily condensable under ambient conditions. In a second reaction step, a liquid solvent containing the 1,3-cyclic dione intermediate is contacted with a supported noble-metal catalyst to form resorcinol or a substituted resorcinol.

REFERENCES:
patent: 3824272 (1974-07-01), Brossi et al.
patent: 3950438 (1976-04-01), Schaafsma
patent: 4018833 (1977-04-01), Muller et al.
patent: 4072660 (1978-02-01), Muller et al.
patent: 4154965 (1979-05-01), Meijer et al.
patent: 4160113 (1979-07-01), Muller et al.
patent: 4250336 (1981-02-01), Muller et al.

Affiliated with

Also associated with

Rating

Preparation of resorcinol and substituted resorcinols by liquid- 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 resorcinol and substituted resorcinols by liquid-, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preparation of resorcinol and substituted resorcinols by liquid- will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2376363