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. 24, 2006
Filed:
Feb. 26, 2004
Fumie Sato, Fujisawa, JP;
Fumie Sato, Fujisawa, JP;
Nissan Chemical Industies, Ltd., Tokyo, JP;
Abstract
A process for producing an organotitanium compound capable of regioselectively converting a substituted acetylene compound into polysubstituted benzene or polysubstituted pyridine. The process comprises reacting an acetylene compound represented by the formula (1) [where Rand Rdenote a Calkyl group or the like] in the presence of a prescribed titanium compound and a Grignard reagent with a compound represented by the formula (4) [where Rand Rdenote a hydrogen atom or the like] and further reacting with a compound represented by the formula (5) [where Rdenotes a hydrogen atom or the like, Z denotes CR' (where R′ denotes a hydrogen atom or the like), nitrogen atom, Xdenotes a halogen atom or the like, and m is 0 or 1]thereby giving the titanium compound represented by the formula (6) and/or (7). [where R˜R, Z, X, and m are defined as above; and Xand Xdenote any of X˜X].