METHOD OF PRODUCING TOLUENE DICARBAMATE, METHOD OF PRODUCING TOLUENE DIISOCYANATE, AND TOLUENE DICARBAMATE

Title:

METHOD OF PRODUCING TOLUENE DICARBAMATE, METHOD OF PRODUCING TOLUENE DIISOCYANATE, AND TOLUENE DICARBAMATE

Document Type and Number:

WIPO Patent Application WO/2012/005059

Kind Code:

A1

Abstract:

A method of producing toluene dicarbamate is provided with: a carbamate production step in which toluenediamine, urea and/or an N-unsubstituted carbamic acid ester, and an alcohol are reacted to produce toluene dicarbamate; and a benzoyleneurea reduction step in which disubstituted benzoyleneurea substituted with a methyl group and an amino group, represented by formula (1) below, and derivatives thereof are reduced to 10 moles or less with respect to 100 moles of toluene dicarbamate. [Formula 1]

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Inventors:

MURAYAMA KOICHI (JP)
SHIMOKAWATOKO YOSHIKI (JP)
KANNO TAKASHI (JP)
TAKAMATSU KOJI (JP)
TAKEUCHI HIROSHI (JP)
SASAKI MASAAKI (JP)
KOTAKI YASUSHI (JP)

Application Number:

PCT/JP2011/061516

Publication Date:

January 12, 2012

Filing Date:

May 19, 2011

Export Citation:

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Assignee:

MITSUI CHEMICALS INC (JP)
MURAYAMA KOICHI (JP)
SHIMOKAWATOKO YOSHIKI (JP)
KANNO TAKASHI (JP)
TAKAMATSU KOJI (JP)
TAKEUCHI HIROSHI (JP)
SASAKI MASAAKI (JP)
KOTAKI YASUSHI (JP)

International Classes:

C07C263/04; C07C265/14; C07C269/04; C07C271/28; C07B61/00

Foreign References:

JPH0418064A	1992-01-22
JPS56103152A	1981-08-18
JPS57114561A	1982-07-16
JPS57114561A	1982-07-16

Other References: