505-20-4

Basic information

• Product Name: Tetrahydro-1,2-dithiin
• Synonyms: 1,2-Dithiacyclohexane;1,2-Dithiane;Tetrahydro-1,2-dithiin
• CAS NO: 505-20-4
• Molecular Formula: C₄H₈S₂
• Molecular Weight: 120.2363
• Mol File: 505-20-4.mol
• Article Data: 7

Chemical Properties

• Melting Point: 32.5°C
• Boiling Point: 199.5°C (estimate)
• Flash Point: 96.9°C
• Appearance: /solid
• Density: 1.062 (estimate)
• Vapor Pressure: 1.67mmHg at 25°C
• Refractive Index: 1.5981 (estimate)
• CAS DataBase Reference: Tetrahydro-1,2-dithiin(CAS DataBase Reference)
• NIST Chemistry Reference: Tetrahydro-1,2-dithiin(505-20-4)
• EPA Substance Registry System: Tetrahydro-1,2-dithiin(505-20-4)

Safety Data

• Hazardous Substances Data: 505-20-4(Hazardous Substances Data)

Usage

Synthesis Reference(s)

Tetrahedron Letters, 14, p. 655, 1973 DOI: 10.1016/S0040-4039(00)72425-7

InChI:InChI=1/C4H8S2/c1-2-4-6-5-3-1/h1-4H2

Upstream product

• 557-22-2 1,2-dithiolane 
• 1191-08-8 1,4-Butanedithiol 
• 65626-90-6 8-chloro-3-methyl-10-phenyl-10H-benzo[g]pteridine-2,4-dione 
• 95353-17-6 3-methyl-10-(4-methoxyphenyl)isoalloxazine 
• 95353-15-4 3,8-Dimethyl-10-phenyl-10H-benzo[g]pteridine-2,4-dione 
• 95353-16-5 8-Methoxy-3-methyl-10-phenyl-10H-benzo[g]pteridine-2,4-dione 
• 35804-39-8 3-methyl-10-phenylisolloxazine 
• 73332-65-7 3,6-dimethyl-10-phenyl-10H-benzo[g]pteridine-2,4-dione 
• 65626-87-1 10-(4'-Chlorophenyl)-3-methylisoalloxazine 
• 645-96-5 Benzeneselenol 
• 380305-97-5 C₆₀H₆₆S₂Se 

Downstream Products

• 557-22-2 1,2-dithiolane 
• 1191-08-8 1,4-Butanedithiol 
• 128846-12-8 5,6,9,10-Tetrahydro-7,8-dithia-benzocyclooctene 
• 791-28-6 Triphenylphosphine oxide 
• 104143-58-0 2,2-diphenyl-1,3-dithiepane 
• 18321-15-8 1,2-dithiane 1,1-dioxide 
• 7153-76-6 1,2-dithiane-1-oxide 
• 15394-33-9 methyl 4-(methylsulfanyl)butyl sulfide 
• 106-99-0 buta-1,3-diene 
• 2225-27-6 1,4-bis(benzenesulfonylthio)butane 
• 4010-05-3 1,4-bis(p-toluenesulfonylthio)butane 
• 156910-57-5 [2-(4,4-Dimethyl-3,4-dihydro-2H-1-benzothiopyran-6-yl)-2-(4-carboxyphenyl)]-1,3-dithiane 
• 104-15-4 toluene-4-sulfonic acid 

Relevant articles and documents

Synthesis of common-sized heterocyclic compounds by intramolecular cyclization over halide cluster catalysts

Five- to seven-membered common-sized heterocyclic compounds containing an oxygen, sulfur, or nitrogen were synthesized by the intramolecular condensation of α,ω-hydroxy, mercapto, or amino alkanes, respectively, over halide cluster complexes as a thermally stable molecular solid weak acid catalyst in the gas phase at temperatures ≥150 °C. From ω- mercapto and ω-amino alcohols, cyclic sulfides and amines were obtained, respectively. These unimolecular reactions are thermodynamically and kinetically favored.

The first direct oxidative conversion of a selenol to a stable selenenic acid: Experimental demonstration of three processes included in the catalytic cycle of glutathione peroxidase

(matrix presented) A stable selenenic acid was synthesized by direct oxidation of a selenol bearing a novel bowl-type substituent with H2O2, and its structure was established by X-ray crystallographic analysis. Selenenyl sulfides obt

Reduction of thiocols to alkanepolythiols with benzeneselenol

Heating of benzeneselenol with polymethylene disulfides to 40-120°C results in formation of the corresponding alkanedithiols or alkanetrithiols and diphenyl diselenide. Poly(tetramethylene disulfide) reacts with benzeneselenol to give 1,2-dithiane and diphenyl diselenide. A radical mechanism of this reaction is discussed.