Preparation of resorcinol and substituted resorcinols by...

Details Preparation of resorcinol and substituted resorcinols by... Preparation of resorcinol and substituted resorcinols by...

C - Chemistry, Metallurgy

07

C

260/618.5

C07C 39/08 (2006.01) C07C 37/06 (2006.01) C07C 45/45 (2006.01) C07C 45/81 (2006.01)

Patent

CA 1185619

PREPARATION OF RESORCINOL AND SUBSTITUTED RESORCINOLS BY LIQUID-PHASE DEHYDROGENATION OF 1,3-CYCLIC DIONES DERIVED BY VAPOR-PHASE CYCLIZATION OF DELTA-KETO CARBOXYLIC ACID ESTERS Abstract of the Invention A process is disclosed for making resorcinol and substituted resor- cinols 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°C and having a suffi- ciently 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.

419877

Affiliated with

Also associated with

Rating

Preparation of resorcinol and substituted resorcinols by... 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..., 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... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1239901