931-35-1

Basic information

• Product Name: 2-ETHYL-4-METHYL IMIDAZOLIN
• Synonyms: 2-ETHYL-4-METHYL IMIDAZOLIN;2-ETHYL-4-METHYLIMIDAZOLINE;EMIZ;2-ETHYL-4,5-DIHYDRO-4-METHYL)-1H-IMIDAZOLE;2-Ethyl-4-methyl-2-imidazoline;2-ethyl-5-methyl-4,5-dihydro-1H-imidazole
• CAS NO: 931-35-1
• Molecular Formula: C₆H₁₂N₂
• Molecular Weight: 112.17
• Mol File: 931-35-1.mol
• Article Data: 4

Chemical Properties

• Boiling Point: 215.5 °C at 760 mmHg
• Flash Point: 84.1 °C
• Appearance: /
• Density: 1.03 g/cm³
• Vapor Pressure: 0.216mmHg at 25°C
• Refractive Index: 1.53
• CAS DataBase Reference: 2-ETHYL-4-METHYL IMIDAZOLIN(CAS DataBase Reference)
• NIST Chemistry Reference: 2-ETHYL-4-METHYL IMIDAZOLIN(931-35-1)
• EPA Substance Registry System: 2-ETHYL-4-METHYL IMIDAZOLIN(931-35-1)

Safety Data

• Hazardous Substances Data: 931-35-1(Hazardous Substances Data)

Usage

General Description

2-ethyl-4-methyl imidazolin is a chemical compound commonly used as a corrosion inhibitor in the oil and gas industry. It is also known for its ability to act as a surfactant and can be found in various industrial cleaning products. 2-ETHYL-4-METHYL IMIDAZOLIN is a clear, yellow liquid with a mild odor and is soluble in water. It is considered to be an effective and environmentally friendly alternative to traditional corrosion inhibitors, as it is biodegradable and non-toxic. Additionally, 2-ethyl-4-methyl imidazolin is used in agriculture as a herbicide and in pharmaceuticals as an intermediate for the synthesis of other organic compounds.

InChI:InChI=1/C6H12N2/c1-3-6-7-4-5(2)8-6/h5H,3-4H2,1-2H3,(H,7,8)

Upstream product

• 137-40-6 sodium proprionate 
• 78-90-0 1,2-diaminopropan 
• 107-12-0 propiononitrile 
• 554-12-1 propanoic acid methyl ester 
• 108-03-2 1-Nitropropane 

Downstream Products

• 931-36-2 2-ethyl-4-methyl-1H-imidazole 

Relevant articles and documents

Environment-friendly 2-ethyl-4-methylimidazole synthesis method

The invention discloses an environment-friendly synthesis method of 2-ethyl-4-methylimidazole, and belongs to the technical field of organic synthesis. The method comprises: generating aminopropyl propionamide at a temperature of 80 DEG C from low-toxicity methyl propionate and 1,2-diaminopropane according to a proper reaction ratio; carrying out cyclization with water on the aminopropyl propionamide and an aromatic hydrocarbon in the presence of a catalyst to generate 2-ethyl-4-methylimidazoline; and dehydrogenating the 2-ethyl-4-methylimidazoline at a temperature of 120-40 DEG C in the presence of a pd/c catalyst to prepare the 2-ethyl-4-methylimidazole. According to the invention, the 2-ethyl-4-methylimidazole is prepared by using the method, so that the use of high-toxicity propionitrile, high-pollution aldehyde and ammonia and high-risk Raney nickel catalysts capable of burning in the presence of air are avoided, no waste ammonia is generated in the production process, and the method belongs to an environment-friendly method for preparing the 2-ethyl-4-methylimidazole.

Preparation method of 2-ethyl-4-methylimidazole

The invention discloses a preparation method of 2-ethyl-4-methylimidazole. The preparation method comprises steps as follows: diamine and propionitrile have a cyclization reaction sequentially at the temperature of 80-110 DEG C and 120-140 DEG C under the catalysis of a catalyst; a product after the cyclization reaction has a dehydrogenation reaction through raney nickel at the temperature of 170-200 DEG C, and 2-ethyl-4-methylimidazole is obtained. The preparation method has the advantages that 2-ethyl-4-methylimidazole is prepared with a substep method, the process cost is reduced, the reaction process is optimized, the operation is simple and convenient, the pollution is reduced, and the reaction yield is high.