872-94-6

Basic information

• Product Name: 4,5-Dihydrothiophene, 1,1-dioxide, 3-methyl-
• Synonyms: 4,5-Dihydrothiophene, 1,1-dioxide, 3-methyl-;4-methyl-2,3-dihydrothiophene1,1-dioxide
• CAS NO: 872-94-6
• Molecular Formula: C₅H₈O₂S
• Molecular Weight: 132.1808
• Mol File: 872-94-6.mol
• Article Data: 3

Chemical Properties

• Boiling Point: 298.4°Cat760mmHg
• Flash Point: 178.4°C
• Appearance: /
• Density: 1.24g/cm³
• Vapor Pressure: 0.00226mmHg at 25°C
• Refractive Index: 1.505
• CAS DataBase Reference: 4,5-Dihydrothiophene, 1,1-dioxide, 3-methyl-(CAS DataBase Reference)
• NIST Chemistry Reference: 4,5-Dihydrothiophene, 1,1-dioxide, 3-methyl-(872-94-6)
• EPA Substance Registry System: 4,5-Dihydrothiophene, 1,1-dioxide, 3-methyl-(872-94-6)

Safety Data

• Hazardous Substances Data: 872-94-6(Hazardous Substances Data)

Usage

InChI:InChI=1/C5H8O2S/c1-5-2-3-8(6,7)4-5/h4H,2-3H2,1H3

Upstream product

• 111669-51-3 4-methyl-2,3-dihydro-thiophene 
• 1193-10-8 3-methyl-2,5-dihydrothiophen-1,1-dioxide 
• 616-44-4 3-Methylthiophene 
• 74-88-4 methyl iodide 
• 75-03-6 ethyl iodide 

Downstream Products

• 872-93-5 3-methylsulfolane 
• 65017-48-3 4-bromo-3-methyl-2-sulfolene 
• 79461-27-1 2-nitro-3-methyl-3-phenylaminosulfolane 

Relevant articles and documents

Alkylation of 3-Thiolene 1,1-Dioxide

Alkylation of 3-methyl-, 3,4-dimethyl-, and 3-methyl-4-phenylthio-3-thiolene 1,1-dioxides with alkyl and benzyl halides in DMF in the presence of NaH yields, respectively, 2-alkyl-2-thiolene 1,1-dioxide, 2-alkyl- and 2,5-dialkyl 3-thiolene 1,1-dioxides, a

Study of the Alkylation Reactions of Sulphol-3-enes

Sulphol-3-ene can be deprotonated with sodium hydride in DMF to form the α-anion which reacts with various alkyl halides to give the 2-alkylsulpholenes.This approach provides a regiospecific preparation of disubstituted sulphol-3-enes and sulphol-2-enes.