The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 16, 2001
Filed:
Feb. 29, 2000
Applicant:
Inventors:
Mingbao Zhang, Morris County, NJ (US);
David Ryckman, Seattle, WA (US);
Eric MacMillan, Morris County, NJ (US);
Assignee:
AlliedSignal Inc., Morris Township, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
C07C / ;
Abstract
A method for the preparation of aromatic hydroxythiols including oxidizing an aromatic aminothiol to form an aminodisulfide compound; forming a bis-diazonium salt of the aminodisulfide compound; and reacting the bis-diazonium salt with water to form an aromatic hydroxyldisulfide compound, which is then reduced to the hydroxythiol. New bis-diazonium aromatic disulfide compounds are also disclosed.