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:
Apr. 09, 2019
Filed:
Feb. 29, 2016
Agc Inc., Chiyoda-ku, JP;
Arata Yasuda, Chiyoda-ku, JP;
Mitsugu Kasagawa, Chiyoda-ku, JP;
AGC Inc., Chiyoda-ku, JP;
Abstract
To provide a novel method for producing a halogenated acrylic acid derivative. A compound represented by the formula (1): (wherein each of Rand Rwhich are independent of each other, is a hydrogen atom or a monovalent group essentially containing a carbon atom, or Rand Rtogether form a ring, Ris a monovalent group capable of being desorbed by ROH removal reaction, and each of Rand Rwhich are independent of each other, is a hydrogen atom or a monovalent group essentially containing a carbon atom) and having a boiling point of at most 500° C., is subjected to ROH removal reaction in a vapor phase in the presence of a solid catalyst to obtain an ethene derivative represented by the formula (2): the ethene derivative represented by the formula (2) and a halogenated methane represented by the formula (3):CHXYZ  (3)(wherein each of X, Y and Z which are independent of one another, is a halogen atom) are reacted in the presence of a basic compound and a phase transfer catalyst, to obtain a cyclopropane derivative represented by the formula (4): and the cyclopropane derivative represented by the formula (4) is reacted by heating in a liquid phase or in a vapor phase to obtain a halogenated acrylic acid ester derivative represented by the formula (5):