2084-18-6 Usage
Description
3-Methyl-2-butanethiol is a colorless liquid with a repulsive, characteristic mercaptan-like odor. It is prepared from isoamyl chloride and potassium sulfhydrate, and its corresponding sodium salt can be prepared from diisopentyl-disulfide and sodium metal in liquid ammonia. 3-Methyl-2-butanethiol is insoluble in water but soluble in organic solvents and has been reported to be found in cooked beef.
Uses
Used in Polymer Industry:
3-Methyl-2-butanethiol is used as a polymerization modifier to enhance the properties of polymers, such as their stability and durability.
Used in Agriculture:
3-Methyl-2-butanethiol serves as an intermediate in the production of insecticides, helping to control and manage pest populations in the agricultural sector.
Used in Rubber Industry:
In the rubber industry, 3-Methyl-2-butanethiol is used as an intermediate for the synthesis of vulcanization accelerators, which are essential for the production of rubber products with improved strength and elasticity.
Used in Detergent and Cosmetics Industry:
3-Methyl-2-butanethiol is utilized as a nonionic surface-active agent in the formulation of detergents and cosmetics, providing improved cleaning and lathering properties.
Preparation
From isoamyl chloride and potassium sulfhydrate; also, the corresponding sodium salt can be prepared from diisopentyldisulfide and sodium metal in liquid ammonia.
Hazard
Flammable, dangerous fire risk.
Check Digit Verification of cas no
The CAS Registry Mumber 2084-18-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,0,8 and 4 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 2084-18:
(6*2)+(5*0)+(4*8)+(3*4)+(2*1)+(1*8)=66
66 % 10 = 6
So 2084-18-6 is a valid CAS Registry Number.
InChI:InChI=1/C5H12S/c1-4(2)5(3)6/h4-6H,1-3H3/t5-/m1/s1
2084-18-6Relevant articles and documents
Mechanisms of the hydrodenitrogenation of alkylamines with secondary and tertiary α-carbon atoms on sulfided NiMo/Al2O3
Zhao,Prins
, p. 532 - 544 (2004)
The HDN of alkylamines with secondary and tertiary α-carbon atoms (2-pentylamine, 3-methyl-2-butylamine, 3,3-dimethyl-2-butylamine, 2-methylcyclohexylamine, 2-methyl-2-butylamine) and benzylamine and the HDS of corresponding alkanethiols were studied over sulfided NiMo/Al2O3. Alkanethiols and dialkylamines were primary products in the HDS of the amines with secondary products, formed from elimination and hydrogenolysis of the alkanethiols, as confirmed by the similar alkenes/alkane ratios in the HDN of the alkylamines and HDS of the corresponding alkanethiols. 2-Methyl-2-butylamine and benzylamine reacted much faster than the amines with secondary α-carbon atoms. Methylbutenes and methylbutane were the primary products of 2-methyl-2-butylamine, and toluene was the primary product of benzylamine. This and the different methylbutenes/methylbutane ratios in the HDS of 2-methyl-2-butylamine and HDS of 2-methyl-2-butanethiol indicated that 2-methyl-2-butylamine, with a tertiary α-carbon atom, and the activated benzylamine reacted by means of an E1 mechanism. The substitution of the NH2 group by H2S led to an alkanethiol and NH3 and, thus, to total denitrogenation. Substitution by an amine led to a dialkylamine and NH3 and to 50% nitrogen removal. High partial pressures of H2S and alkylamine increased the rate of transformation of alkylamine to alkanethiol and thus, of denitrogenation. However, the rate of sulfur removal from the alkanethiol decreased.