4088-54-4

Basic information

• Product Name: (2E)-1-(methylsulfanyl)but-2-ene
• Synonyms: (2E)-1-(Methylsulfanyl)-2-butene; 1-(Methylthio)-2-butene; trans-1-(Methylthio)-2-butene
• CAS NO: 4088-54-4
• Molecular Formula: C₅H₁₀S
• Molecular Weight: 102.1979
• Mol File: 4088-54-4.mol
• Article Data: 4

Chemical Properties

• Boiling Point: 119.6°C at 760 mmHg
• Flash Point: 18.1°C
• Density: 0.861g/cm³
• Vapor Pressure: 18.9mmHg at 25°C
• Refractive Index: 1.472
• CAS DataBase Reference: (2E)-1-(methylsulfanyl)but-2-ene(CAS DataBase Reference)
• NIST Chemistry Reference: (2E)-1-(methylsulfanyl)but-2-ene(4088-54-4)
• EPA Substance Registry System: (2E)-1-(methylsulfanyl)but-2-ene(4088-54-4)

Safety Data

• Hazardous Substances Data: 4088-54-4(Hazardous Substances Data)

Usage

General Description

The chemical compound (2E)-1-(methylsulfanyl)but-2-ene, also known as 2-methylthiobut-2-ene, is an organic compound with the molecular formula C5H10S. It is a colorless liquid with a pungent odor, and it is commonly used as a flavoring agent in the food industry. It is also used in the production of fragrances and as a chemical intermediate. (2E)-1-(methylsulfanyl)but-2-ene is classified as an alkene, which means it contains a carbon-carbon double bond. It is important to handle this compound with care, as it can be irritating to the eyes and skin, and it should be stored in a cool, dry place away from heat and sources of ignition.

Upstream product

• 4894-61-5 trans-but-2-enyl chloride 
• 5188-07-8 sodium thiomethoxide 
• 4784-77-4 (E)-1-Bromo-2-butene 
• 4088-56-6 1-methyl-2-propenyl methyl sulfide 
• 74-93-1 methylthiol 
• 106-99-0 buta-1,3-diene 
• 40486-60-0 S-(1-methylallyl) S-methyl dithiocarbonate 
• 40486-46-2 Dithiocarbonic acid O-((E)-but-2-enyl) ester S-methyl ester 
• 17414-27-6 (E)-1-(methylthio)-1-butene 
• 4088-55-5 (Z)-1-(methylthio)-2-butene 

Downstream Products

• 99116-25-3 1,3-bis-methylsulfanyl-but-1-ene 
• 123-73-9 crotonaldehyde 

Relevant articles and documents

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Structure-Stability Relationships in Vinyl Sulfides. III. Stabilization Caused by Different Alkylthio and Phenylthio Groups Attached to an Olefinic Double Bond

The stabilization energies of different alkylthio and phenylthio groups attached to an olefinic double bond have been evaluated with respect to the energy differences of the isomerization reactions of some unsaturated sulfides, in which the double bond migrates from the β,γ- to the α,β-position.According to these results the stabilization energies (in kJ mol-1) are: MeS 15.6, EtS 14.8, i-PrS 15.7, t-BuS 17.5 and PhS 14.4

Homogenous Catalysis. Production of Allyl Alkyl Sulphides by Palladium Mediated Allylation

The use of O-allyl S-alkyl dithiocarbonate substrates in palladium mediated catalytic allylation gives carbonyl sulphide and allyl alkyl sulphides with net retention of configuration and their use obviates the problems associated with sulphur nucleophiles in catalytic allylation.