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:
Dec. 25, 1990
Filed:
Feb. 28, 1989
Applicant:
Inventors:
John L Dektar, San Jose, CA (US);
Nigel P Hacker, Morgan Hill, CA (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07F / ; C07F / ; C07F / ;
U.S. Cl.
CPC ...
556 64 ; 568 77 ;
Abstract
A triarylsulfonium salt is prepared in high yield and high purity by a two-step process involving a aryl Grignard reagent reacted with a diarylsulfoxide in a solvent which is a mixture of aliphatic and aromatic hydrocarbons, followed by a second step which is metathesis with ZMF.sub.6, where Z is a metal or metal-like anion, and M is antimony, arsenic or phosphorus, preferably employing an ammonium salt and carried out in a non-aqueous solvent.
Dektar, John. (1990). Synthesis of triarylsulfonium salts (U.S. Patent No. 4980492). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4980492
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile