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. 20, 1987
Filed:
Feb. 12, 1986
Donald S Matteson, Pullman, WA (US);
Gerald D Hurst, Pullman, WA (US);
Washington State University Research Foundation, Inc., Pullmann, WA (US);
Abstract
Esters of .alpha.,.alpha.-haloalkyl boronic acids are prepared by the addition of an alkali metal dialkylamide, or some other equivalent sterically hindered base to a mixture of a 1,1-dihaloalkane and a trialkyl borate in an organic solvent at a temperature between about -78.degree. C. and +25.degree. C. In one embodiment, diisopropyl (dichloromethyl)borate is formed by the addition of lithium diisopropylamide to a mixture of dichloromethane and triisopropyl borate in the presence of tetrahydrofuran as the solvent medium at a temperature between about -10.degree. C. and +10.degree. C.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile