2080-58-2

Basic information

• Product Name: 1,3-dithiolan-2-one
• Synonyms: 1,3-Dithiacyclopentane-2-one; 1,3-Dithiolan-2-one
• CAS NO: 2080-58-2
• Molecular Formula: C₃H₄OS₂
• Molecular Weight: 120.1933
• Mol File: 2080-58-2.mol
• Article Data: 4

Chemical Properties

• Boiling Point: 188.2°C at 760 mmHg
• Flash Point: 79.4°C
• Density: 1.427g/cm³
• Vapor Pressure: 0.606mmHg at 25°C
• Refractive Index: 1.639
• CAS DataBase Reference: 1,3-dithiolan-2-one(CAS DataBase Reference)
• NIST Chemistry Reference: 1,3-dithiolan-2-one(2080-58-2)
• EPA Substance Registry System: 1,3-dithiolan-2-one(2080-58-2)

Safety Data

• Hazardous Substances Data: 2080-58-2(Hazardous Substances Data)

Upstream product

• 178272-15-6 Thiocarbonic acid S-(2-mercapto-ethyl) ester O-phenyl ester 
• 65225-59-4 2-ethoxy-[1,3]dithiolane 
• 286-20-4 cyclohexane-1,2-epoxide 
• 822-38-8 1,3-dithiolane-2-thione 
• 96-49-1 [1,3]-dioxolan-2-one 
• 463-58-1 carbon oxide sulfide 

Downstream Products

• 540-63-6 ethane-1,2-dithiol 
• 57-13-6 urea 
• 110-04-3 ethane-1,2-disulphonic acid 
• 139515-48-3 N-(4,5-Diphenyl-oxazol-2-yl)-N'-[1,3]dithiolan-2-ylidene-hydrazine 

Relevant articles and documents

Convenient procedure for converting 1,3-dithiolane-2-thiones into 1,3-dithiolan-2-ones

1,3-Dithiolan-2-ones have been obtained by reaction of 1,3-dithiolane-2-thiones and epoxides in the presence of HBF4·Et2O. The reactions, carried out in anhydrous CH2Cl2 at 0-5°C→room temperature (Procedure A) or in anhydrous chlorobenzene at 0-5→80°C (Procedure B), gave product yields of 63-95%. By Procedure B it was also possible to isolate the intermediates 1-oxa-4,6,9-trithiaspiro[4,4]nonanes in good yields (66-85%). Reaction pathways are proposed.

The Preparation of Cyclic Dithia and Thiaza Compounds by the Reaction of Potassium Carbonate with Heterocumulenes and Alkylene Dibromides or Carbonate Catalyzed by Organostannyl Compounds

Cyclic 1,3-dithia- and 1,3-thiaza-2-ylidene compounds were obtained by the heterogenous reaction of solid potassium carbonate, a sulfur-containing heterocumulene, such as aryl isothiocyanate, carbon disulfide, or carbonyl silfide, and alkylene dibromides or ethylene carbonate in the presence of bis(tributylstannyl) compounds.The effect of an organostannyl catalyst on these reactions is discussed.