JPS56156252A - Preparation of methylene dicarbanilates - Google Patents

Preparation of methylene dicarbanilates

Info

Publication number
JPS56156252A
JPS56156252A JP5929380A JP5929380A JPS56156252A JP S56156252 A JPS56156252 A JP S56156252A JP 5929380 A JP5929380 A JP 5929380A JP 5929380 A JP5929380 A JP 5929380A JP S56156252 A JPS56156252 A JP S56156252A
Authority
JP
Japan
Prior art keywords
acid catalyst
methylene
solid acid
carbanilate
hcho
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.)
Pending
Application number
JP5929380A
Other languages
Japanese (ja)
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 JP5929380A priority Critical patent/JPS56156252A/en
Publication of JPS56156252A publication Critical patent/JPS56156252A/en
Pending legal-status Critical Current

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  • Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE: To obtain the titled substance useful as an intermediate for a raw material of polyurethane in high yield, by reacting a carbanilate with HCHO in the presence of a solid acid catalyst using a specific reaction solvent.
CONSTITUTION: A carbanilate shown by the formula (R is 1W4C alkyl, or phenyl; X, Y, and X are H, halogen, 1W5C alkyl, etc.) is reacted with HCHO in the presence of a solid acid catalyst having a proton exchange capacity at least 0.1meq./g to give a methylene dicarbanilate. In the reaction, an aliphatic carboxylic acid or its anhydride (e.g., acetic acid) is used as at least one component of a reaction solvent. A sulfonic acid type cation exchange resin, etc. consisting of styrene-divinylbenzene copolymer as a parent body may be cited as the solid acid catalyst.
EFFECT: The use of phosgene is not required.
COPYRIGHT: (C)1981,JPO&Japio
JP5929380A 1980-05-02 1980-05-02 Preparation of methylene dicarbanilates Pending JPS56156252A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5929380A JPS56156252A (en) 1980-05-02 1980-05-02 Preparation of methylene dicarbanilates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5929380A JPS56156252A (en) 1980-05-02 1980-05-02 Preparation of methylene dicarbanilates

Publications (1)

Publication Number Publication Date
JPS56156252A true JPS56156252A (en) 1981-12-02

Family

ID=13109183

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5929380A Pending JPS56156252A (en) 1980-05-02 1980-05-02 Preparation of methylene dicarbanilates

Country Status (1)

Country Link
JP (1) JPS56156252A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5557550A (en) * 1978-10-20 1980-04-28 Atlantic Richfield Co Manufacture of diphenylmethanedicarbamate and polymethylenepolyphenylcarbamate

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5557550A (en) * 1978-10-20 1980-04-28 Atlantic Richfield Co Manufacture of diphenylmethanedicarbamate and polymethylenepolyphenylcarbamate

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