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. 14, 2006
Filed:
Feb. 12, 2002
Li-biao Han, Ibaraki, JP;
Chang-qiu Zhao, Ibaraki, JP;
Masato Tanaka, Ibaraki, JP;
Japan Science and Technology Corporation, Saitama, JP;
National Institute of Advanced Industrial Science & Technology, Tokyo, JP;
Abstract
A novel process for preparation of alkenylphosphine oxides or alkenylphosphinic acid esters provided by which the objective compounds can be easily, safely and efficiently synthesized and easily separated and purified with little formation of by-products. Specifically, a process of conducting the addition reaction of an easily available secondary phosphine oxide or hydrogen phosphinic acid ester with an acetylene compound with a catalyst containing a Group 9 or 10 metal of the periodic table to thereby obtain the corresponding alkenylphosphine oxide or alkenylphosphinic acid ester.