JPS56167656A - Preparation of methylenedicarbanilate - Google Patents

Preparation of methylenedicarbanilate

Info

Publication number
JPS56167656A
JPS56167656A JP7221380A JP7221380A JPS56167656A JP S56167656 A JPS56167656 A JP S56167656A JP 7221380 A JP7221380 A JP 7221380A JP 7221380 A JP7221380 A JP 7221380A JP S56167656 A JPS56167656 A JP S56167656A
Authority
JP
Japan
Prior art keywords
carbanilate
expressed
hcho
formulas
yield
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP7221380A
Other languages
Japanese (ja)
Other versions
JPS6234032B2 (en
Inventor
Hirosuke Wada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Kasei Corp
Original Assignee
Mitsubishi Kasei Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Kasei Corp filed Critical Mitsubishi Kasei Corp
Priority to JP7221380A priority Critical patent/JPS56167656A/en
Publication of JPS56167656A publication Critical patent/JPS56167656A/en
Publication of JPS6234032B2 publication Critical patent/JPS6234032B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To obtain the titled compound which is an intermediate for preparing polyurethane in high conversion and yield, by reacting a carbanilate with HCHO in the presence of a specific catalyst in an aliphatic carboxylic acid and an anhydride thereof as at least one component of a solvent.
CONSTITUTION: A carbanilate expressed by formula I (R is 1W4C alkyl or phenyl; X, Y and Z are H, halogen, nitro, etc.), e.g. methyl carbanilate or ethyl carbanilate, is reacted with HCHO in the presence of a catalyst, e.g. a heterpolymolybdic acid such as H3Mo12PO40 or H4Mo12TiO40, or a heteropolytungstic acis such as H3W12 PO40 or H4W12SiO40, to give the titled compound. In the case of the ethyl carbanilate used, the compounds expressed by formulas IIWV are obtained. The yield of the compound expressed by formula I or II is improved by circulating the component expressed by formulas IV and V through the reaction system.
COPYRIGHT: (C)1981,JPO&Japio
JP7221380A 1980-05-30 1980-05-30 Preparation of methylenedicarbanilate Granted JPS56167656A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7221380A JPS56167656A (en) 1980-05-30 1980-05-30 Preparation of methylenedicarbanilate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7221380A JPS56167656A (en) 1980-05-30 1980-05-30 Preparation of methylenedicarbanilate

Publications (2)

Publication Number Publication Date
JPS56167656A true JPS56167656A (en) 1981-12-23
JPS6234032B2 JPS6234032B2 (en) 1987-07-24

Family

ID=13482733

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7221380A Granted JPS56167656A (en) 1980-05-30 1980-05-30 Preparation of methylenedicarbanilate

Country Status (1)

Country Link
JP (1) JPS56167656A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013067679A1 (en) 2011-11-08 2013-05-16 中国科学院过程工程研究所 Method for preparing polymethylene polyphenyl polyamino formate
CN106565545A (en) * 2015-10-12 2017-04-19 中国石油化工股份有限公司 Method for continuous catalytic preparation of 4, 4 '-methylene diphenyl dicarbamate

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013067679A1 (en) 2011-11-08 2013-05-16 中国科学院过程工程研究所 Method for preparing polymethylene polyphenyl polyamino formate
US9062161B2 (en) 2011-11-08 2015-06-23 Institute Of Process Engineering, Chinese Academy Of Sciences Method for preparing polymethylene polyphenyl polycarbamate
CN106565545A (en) * 2015-10-12 2017-04-19 中国石油化工股份有限公司 Method for continuous catalytic preparation of 4, 4 '-methylene diphenyl dicarbamate

Also Published As

Publication number Publication date
JPS6234032B2 (en) 1987-07-24

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