4223-24-9

Basic information

• Product Name: toluene-2,4-dicarbamic acid diphenyl ester
• Synonyms: toluene-2,4-dicarbamic acid diphenyl ester
• CAS NO: 4223-24-9
• Molecular Weight: 362.385
• Mol File: 4223-24-9.mol
• Article Data: 9

Chemical Properties

• CAS DataBase Reference: toluene-2,4-dicarbamic acid diphenyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: toluene-2,4-dicarbamic acid diphenyl ester(4223-24-9)
• EPA Substance Registry System: toluene-2,4-dicarbamic acid diphenyl ester(4223-24-9)

Safety Data

• Hazardous Substances Data: 4223-24-9(Hazardous Substances Data)

Upstream product

• 102-09-0 bis(phenyl) carbonate 
• 95-80-7 4-methylbenzene-1,3-diamine 
• 124-38-9 carbon dioxide 
• 57-13-6 urea 
• 10097-06-0 2,4-tolylene diurea 
• 108-95-2 phenol 

Downstream Products

• 584-84-9 2,4-Toluene diisocyanate 

Relevant articles and documents

METHOD FOR PRODUCING CARBAMATE AND METHOD FOR PRODUCING ISOCYANATE

The present invention provides a method for producing a carbamate that includes a step (1) and a step (2) described below: (1) a step of producing a compound (A) having a urea linkage, using an organic primary amine having at least one primary amino group per molecule and at least one compound selected from among carbon dioxide and carbonic acid derivatives, at a temperature lower than the thermal dissociation temperature of the urea linkage; and(2) a step of reacting the compound (A) with a carbonate ester to produce a carbamate.

PROCESS FOR PRODUCING ISOCYANATE USING DIARYL CARBONATE

An object of the present invention is to provide a process that enables isocyanate to be produced stably over a long period of time and at high yield without encountering problems of the prior art during production of isocyanate without using phosgene. The present invention provides an isocyanate production process including the steps of: obtaining a reaction mixture containing an aryl carbamate having an aryl group originating in a diaryl carbonate, an aromatic hydroxy compound originating in a diaryl carbonate, and a diaryl carbonate, by reacting a diaryl carbonate and an amine compound in the presence of a reaction solvent in the form of an aromatic hydroxy compound; transferring the reaction mixture to a thermal decomposition reaction vessel; and obtaining isocyanate by applying the aryl carbamate to a thermal decomposition reaction, wherein the reaction vessel in which the reaction between the diaryl carbonate and the amine compound is carried out and the thermal decomposition reaction vessel for the aryl carbamate are different.

PROCESS FOR THE PREPARATION OF N-SUBSTITUTED CARBAMIC ACID ESTER AND PROCESS FOR THE PREPARATION OF ISOCYANATE USING THE N-SUBSTITUTED CARBAMIC ACID ESTER

The present invention provides a method for producing N-substituted carbamic acid-O-aryl ester derived from a compound having an ureido group, the method comprising the step of carrying out esterification or esterification and transesterification from the compound having the ureido group and a hydroxy composition containing one type or a plurality of types of hydroxy compounds.