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:
Nov. 12, 2013
Filed:
Nov. 26, 2012
Dow Global Technologies Llc, Midland, MI (US);
Paul C. Vosejpka, Midland, MI (US);
Harold W. Boone, Sugar Land, TX (US);
Kevin A. Frazier, Midland, MI (US);
Carl N. Iverson, Houston, TX (US);
Dow Global Technologies, LLC, Midland, MI (US);
Abstract
The invention relates to a process for preparing a stable 2-substituted benzofuran-3-yl borate ester corresponding to the formula: said process comprising contacting 3-bromo-2-substituted-benzofuran corresponding to the formula: with an Calkyllithium at a temperature less than −60° C. to form 3-lithio-2-substititued-benzofuran, contacting the 3-lithio-2-substituted- benzofuran at a temperature less than −60° C. with an borate ester corresponding to the formula: and recovering the resulting borate ester product,