Deeper Knowledge, Faster

  • Analyze global market entry opportunities
  • Uncover prior art in expired and abandoned patents
  • Drug patents in 130+ countries

Upgrade to enjoy subscriber-only features like email alerts and data export. See the Plans and Pricing

Serving leading biopharmaceutical companies globally:

Argus Health
Cantor Fitzgerald
Fish and Richardson
Farmers Insurance
Harvard Business School

Generated: December 14, 2017

DrugPatentWatch Database Preview

Details for Patent: ► Subscribe

« Back to Dashboard

Details for Patent: ► Subscribe

Abstract:A novel process is disclosed for preparing substituted hydroquinone of the formula: ##SPC1## Wherein R is member selected from the group consisting of lower-alkyl, aryl, and lower alkoxy and m is an integer of 1 to 4; by reductive hydrolysis of the corresponding nitrosophenol. 7 Claims, No Drawings
Inventor(s): William Von E. Doering (Cambridge, MA), William J. Farrissey, Jr. (Northford, CT), Floro F. Frulla (Wallingford, CT), Durvasula V. Rao (Hamden, CT)
Assignee: The Upjohn Company, Kalamazoo, MI (N/A)
Filing Date:Apr 16, 1970
Application Number:05/029,279
Claims:1. A process for preparing a substituted hydroquinone of the formula: ##SPC5## wherein R is a member selected from the group consisting of lower alkyl, aryl and lower-alkoxy and m is an integer of 1 to 4; which process comprises heating the corresponding p-nitrosophenol to a temperature of about 60.degree. to 120.degree.C, in an 0.1 N to 6 N aqueous solution of a mineral acid selected from the group consisting of sulfuric, phosphoric and hydrochloric acid, and in the presence of hydrogen and from about 1 percent to about 5 percent by weight of said p-nitrosophenol, of a noble metal hydrogenation catalyst; the concentration of said p-nitrosophenol in

2. The process of claim 1, wherein said hydrogenation catalyst is platinum
« Back to Dashboard

For more information try a trial or see the plans and pricing

Serving leading biopharmaceutical companies globally:

Daiichi Sankyo
US Army

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. thinkBiotech performs no independent verifification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.

Copyright 2002-2017 thinkBiotech LLC
ISSN: 2162-2639

Secure SSL Encrypted
Privacy and Cookies
Terms & Conditions

Follow DrugPatentWatch: