99305-42-7

Basic information

• Product Name: Carbaminsure, (Methyldi-4,1 cyclohexandiyl)bis-, butylester
• Synonyms: Carbaminsure, (Methyldi-4,1 cyclohexandiyl)bis-, butylester
• CAS NO: 99305-42-7
• Molecular Formula: C₂₃H₄₂N₂O₄
• Molecular Weight: 410.6
• Mol File: 99305-42-7.mol
• Article Data: 8

Chemical Properties

• Boiling Point: 334.85℃[at 101 325 Pa]
• Appearance: /
• Solubility: 24.5g/L in organic solvents at 20 ℃
• Water Solubility: 78μg/L at 20℃
• CAS DataBase Reference: Carbaminsure, (Methyldi-4,1 cyclohexandiyl)bis-, butylester(CAS DataBase Reference)
• NIST Chemistry Reference: Carbaminsure, (Methyldi-4,1 cyclohexandiyl)bis-, butylester(99305-42-7)
• EPA Substance Registry System: Carbaminsure, (Methyldi-4,1 cyclohexandiyl)bis-, butylester(99305-42-7)

Safety Data

• Hazardous Substances Data: 99305-42-7(Hazardous Substances Data)

Usage

Flammability and Explosibility

Nonflammable

Upstream product

• 109-69-3 n-Butyl chloride 
• 1761-71-3 4,4'-diaminodicyclohexylmethane 
• 17351-61-0 tetraethylammonium bicarbonate 
• 542-52-9 Dibutyl carbonate 
• 47636-24-8 dibutyl diphenyl methane-4,4’-dicarbamate 
• 124-38-9 carbon dioxide 

Downstream Products

• 5124-30-1 4,4'-bis(diisocyanato)dicyclohexylmethane 

Relevant articles and documents

Sustainable Carboxylation of Diamines with Hydrogen Carbonate

A protocol for the carboxylation of diamines employing quaternary ammonium hydrogen carbonates as C1 source is presented. The approach is used to obtain industrially relevant bis-O-alkyl carbamates with diverse structural features in very high yield, even on gram scale. The quaternary ammonium salts, formally acting as "transporters" of the carboxylating agent, can be recovered after the reaction, and recycled with high efficiency. Regeneration of the hydrogen carbonates on ion-exchange resin grants excellent atom economy in the process.

Method for Preparing Dicarbamate Compounds

The present invention provides a preparing method of dicarbamate, comprising: a first step of obtaining an alcohol solution including diureido obtained by reacting diamine having 2 to 13 carbon atoms with urea in the presence of alcohol having 3 to 12 carbon atoms at low temperature of 150anddeg;C or less; and a second step of obtaining dicarbamate by reacting the alcohol solution including the diureido at high temperature of 200anddeg;C or more under carbon dioxide pressure. According to the preparing method of the present invention, yield and selectivity of dicarbamate are significantly increased, and formation of an alkylated amine by-product can be minimized.COPYRIGHT KIPO 2016

PROCESS FOR PRODUCING ISOCYANATE

An object of the present invention is to provide a process allowing long-term, stable production of isocyanates at a high yield without the various problems found in the prior art during production of isocyanates without using phosgene. The present invention discloses a process for producing an isocyanate by subjecting a carbamic acid ester to a decomposition reaction in the presence of a compound having an active proton and a carbonic acid derivative.