METHOD FOR PRODUCING ESTERS OF CARBAMIC ACID

Title:

METHOD FOR PRODUCING ESTERS OF CARBAMIC ACID

Document Type and Number:

Japanese Patent JP2003342249

Kind Code:

A

Abstract:

To provide a method for efficiently synthesizing and purifying esters of carbamic acid having an isopropenyl group or a vinyl group and being a useful compound as a raw material for a polymer in a wide range such as an urethane modifier and a raw material for a plastic resin.

This method for producing the ester derivative of the carbamic acid represented by formula (III) (wherein, R1 is a phenylene group, a biphenylene group or a naphthylene group; R2 is the same or different, and hydrogen or an alkyl group; and R3 is an alkyl group) involves reacting a carbamic acid ester of the formula (II): NH2CO2R3 (wherein, R3 has the same meaning as the above) with divinyl compounds of formula (I) (wherein, R1 and R2 have the same meanings as the above) in the presence of an acid catalyst in a polar solvent.

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Inventors:

SHIOYA MASAHIRO
KOUGO OSAMU
KAWASAKI NOBORU
SASAGAWA KATSUYOSHI

Application Number:

JP2003065854A

Publication Date:

December 03, 2003

Filing Date:

March 12, 2003

Export Citation:

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Assignee:

MITSUI CHEMICALS INC

International Classes:

C07C269/06; C07B61/00; C07C271/12; (IPC1-7): C07C269/06; C07C271/12

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