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:
Sep. 04, 2012
Filed:
May. 04, 2010
Krishnamurthy Nacharaju, Hilliard, OH (US);
Paul D. Taylor, Dublin, OH (US);
Mark J. Cooney, Circleville, OH (US);
Larry A. Crabtree, Chillicothe, OH (US);
Krishnamurthy Nacharaju, Hilliard, OH (US);
Paul D. Taylor, Dublin, OH (US);
Mark J. Cooney, Circleville, OH (US);
Larry A. Crabtree, Chillicothe, OH (US);
ISP Investments Inc., Wilmington, DE (US);
Abstract
A process for the synthesis of linear α,ω-diolefins from an allylic substrate comprises the steps of a) forming the bis-Grignard reagent XMgCH(CH)CHMgX from an α,ω-acyclic dihalide with X being a halogen; b) preparing a solution comprising an allylic substrate and a copper catalyst; c) catalyzing a coupling reaction by adding to the solution of step (b) the bis-Grignard reagent of step (a); and d) isolating and purifying the α,ω-olefin coupling reaction product.