Method for producing halogenated acrylic acid derivative

Patent metadata

Field	Value
Publication number	US-10252971-B2
Application number	US-201615055903-A
Country	US
Kind code	B2
Filing date	Feb 29, 2016
Priority date	Aug 27, 2015
Publication date	Apr 9, 2019
Grant date	Apr 9, 2019

Abstract

To provide a novel method for producing a halogenated acrylic acid derivative.
A compound represented by the formula (1):

(wherein each of R 1 and R 2 which are independent of each other, is a hydrogen atom or a monovalent group essentially containing a carbon atom, or R 1 and R 2 together form a ring, R 3 is a monovalent group capable of being desorbed by R 3 OH removal reaction, and each of R 4 and R 5 which 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 R 3 OH 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):

First claim

What is claimed is:

1. A method for producing a halogenated acrylic acid ester compound, comprising:
subjecting a compound of formula (1) having a boiling point of at most 500° C. to R 3 OH removal reaction in a vapor phase in the presence of a solid catalyst which is at least one solid catalyst selected from the group consisting of a metal catalyst and a metal oxide catalyst to produce an ethene compound of formula (2), wherein the R 3 OH removal reaction is conducted by flowing a vaporized compound of formula (1) through a catalyst layer which comprises the solid catalyst:

wherein each of R1 and R2 is independently a hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, an aryl group, an aryloxy group, an alkyl group having a substituent, a cycloalkyl group having a substituent, an alkoxy group having a substituent, an aryl group having a substituent, or an aryloxy group having a substituent, and each of R3, R4 and R5 is independently an alkyl group, a cycloalkyl group, an aryl group, an alkyl group having a substituent, a cycloalkyl group having a substituent, or an aryl group having a substituent;
reacting the ethene compound of formula (2) and a compound of formula (3) in the presence of a basic compound and a phase transfer catalyst which is at least one selected from the group consisting of a tetrabutylammonium salt, a trioctylmethylammonium salt and a benzyldimethyloctadecylammonium salt to produce a cyclopropane compound of formula (4):
CHXYZ  (3)

wherein each of X, Y and Z is independently a halogen atom, and R 1 , R 2 , R 4 and R 5 are each as defined in formula (1); and
subjecting the cyclopropane compound of formula (4) to R 4 Y removal reaction by heating the cyclopropane compound of formula (4) in a liquid phase or in a vapor phase to produce a halogenated acrylic acid ester compound of formula (5):

wherein R 1 , R 2 and R 5 are each as defined in formula (1), and X is as defined in formula (4).

2. The according to claim 1 , wherein X is a fluorine atom.

3. The method according to claim 1 , wherein the temperature of the R 4 Y removal reaction is from 80 to 400° C.

4. The method according to claim 1 , wherein production of the halogenated acrylic acid ester compound of formula (5) is carried out in the presence of a polymerization inhibitor.

5. The method according to claim 4 , wherein the amount of the polymerization inhibitor is at least 10 ppm based on the halogenated acrylic acid ester compound.

6. The method according to claim 1 , wherein a temperature of the R 3 OH removal reaction is from 100 to 500° C.

7. The method according to claim 1 , wherein the solid catalyst is a metal oxide catalyst.

8. The method according to claim 7 , wherein the metal oxide catalyst comprises at least one member selected from the group consisting of zirconia, alumina, zeolite and zinc oxide.

9. The method according to claim 1 , wherein the basic compound is at least one member selected from the group consisting of an alkali metal hydroxide, an alkali metal alkoxide, an alkali metal hydride and an alkyllithium.

10. The method according to claim 1 , wherein Xis a fluorine atom, and Y is a chlorine atom or a fluorine atom.

11. The method according to claim 7 , wherein the metal oxide catalyst comprises zinc oxide.

Assignees

• Agc Inc

Inventors

• Yasuda Arata
• Kasagawa Mitsugu

Classifications

• C07C41/50

  by reactions producing [IMAGE cpc-sch-C07C-0958.gif] groups · CPC title

• C07C43/32

  Compounds having [IMAGE cpc-sch-C07C-0959.gif] groups or[IMAGE cpc-sch-C07C-0960.gif] groups · CPC title

• C07C67/00 Primary

  Preparation of carboxylic acid esters · CPC title

• C07C67/62

  Use of additives, e.g. for stabilisation · CPC title

• C07C41/54

  by addition of compounds to unsaturated carbon-to-carbon bonds · CPC title