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:
Mar. 23, 1999
Filed:
Jan. 22, 1998
Naokazu Ito, Aichi, JP;
Toshiro Hirose, Aichi, JP;
Toagosei Co., Ltd., Tokyo, JP;
Abstract
The present invention is to provide for a process for producing 3-chloromethyl-3-alkyloxetanes from a 1,1-bis(chloromethyl)-1-hydroxymethylalkane or its carboxylate ester through a dehydrogen chloride reaction or a deacid chloride reaction in an aqueous solution or suspension of an alkaline compound. The reaction is conducted, either in the presence of a phase transfer catalyst or an anion exchange resin having an ammonium group, or, while distilling the formed 3-chloromethyl-3-alkyloxetane out azeotropically with water. The invention enables one to produce 3-chloromethyl-3-alkyloxetanes within a shorter period of time and with a higher yield, and thus the process is much advantageous and useful from the industrial points of view.