Process for the production of dihydroxybenzenes

Details Process for the production of dihydroxybenzenes Process for the production of dihydroxybenzenes

1984-03-12

1986-12-09

Lone, Werren B.

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

Organic compounds

Oxygen containing

568741, 568803, C07C 3700

Patent

active

046281266

ABSTRACT:
The nuclear hydroxylation of phenol with organic solutions of hydrogen peroxide in the presence of a catalyst is carried out in improved manner by employing both (1) a special, practically water free solution of hydrogen peroxide in an organic solvent which does not form an azeotrope with water or whose highest azeotrope with water, boil near or above the boiling point of hydrogen peroxide, and (2) employing as a catalyst XO.sub.2 where X is sulfur, selenium, or tellurium. Besides increasing the yield and the ability to carry out the reaction in a simpler manner when selenium dioxide is employed as a catalyst, there can also be controlled the ortho-para ratio, respectively, the ortho-ortho ratio of the product.

REFERENCES:
patent: 3943179 (1976-03-01), Bost
Ullmanns Encyklopadie der Technischen Chemie 4., Neubearbeitete und Erweiterte Auflage-Band 17-Milchsaure bis Petrolkoks.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1386083