3166-15-2

Basic information

• Product Name: 9-Oxo-9H-thioxanthene 10,10-dioxide
• Synonyms: 9-Oxo-9H-thioxanthene 10,10-dioxide
• CAS NO: 3166-15-2
• Molecular Formula: C₁₃H₈O₃S
• Molecular Weight: 244.2658
• Mol File: 3166-15-2.mol
• Article Data: 7

Chemical Properties

• Melting Point: 187 °C
• Boiling Point: 467.2°Cat760mmHg
• Flash Point: 311.8°C
• Appearance: /
• Density: 1.444g/cm³
• Vapor Pressure: 6.62E-09mmHg at 25°C
• Refractive Index: 1.667
• CAS DataBase Reference: 9-Oxo-9H-thioxanthene 10,10-dioxide(CAS DataBase Reference)
• NIST Chemistry Reference: 9-Oxo-9H-thioxanthene 10,10-dioxide(3166-15-2)
• EPA Substance Registry System: 9-Oxo-9H-thioxanthene 10,10-dioxide(3166-15-2)

Safety Data

• Hazardous Substances Data: 3166-15-2(Hazardous Substances Data)

Usage

InChI:InChI=1/C13H8O3S/c14-13-9-5-1-3-7-11(9)17(15,16)12-8-4-2-6-10(12)13/h1-8H

Upstream product

• 7605-15-4 thioxanthen-9-one 10-oxide 
• 492-22-8 thio-xanthene-9-one 
• 1142-19-4 4,4'-dichlorodiphenyl disulfide 
• 103-19-5 di(p-tolyl) disulfide 
• 5335-87-5 4,4'-dimethoxyphenyl disulfide 
• 6630-80-4 9-phenyl-9H-thioxanthen-9-ol 
• 882-33-7 diphenyldisulfane 

Downstream Products

• 632-50-8 1,1,2,2-tetraphenylethane 
• 3166-16-3 9H-Thioxanthene 10,10-dioxide 
• 5395-25-5 9-thioxanthone oxime 10,10-dioxide 
• 87043-71-8 4-(10,10-Dioxo-10H-10λ⁶-thioxanthen-9-ylidenevinylidene)-2,6-diphenyl-4H-pyran 

Relevant articles and documents

Redox properties and radical anions of 2-substituted thioxanthen-9-ones and their 2-methyl S-oxide derivatives

The electrochemical reduction of 2-substituted thioxanthen-9-ones in MeCN is a one-electron process with the formation of long-lived radical anions, in which the thioxanthen-9-one fragment is planar according to EPR measurements and UB3LYP/6-31+G* calculations. The electrochemical reduction of 2-methylthioxanthen-9-one sulfoxide and sulfone are EEC and EE processes, respectively, their radical anions are not planar, and the electrochemical oxidation of the title compounds is irreversible with consecutive oxidation of the sulfur atom, except for the sulfone, whose oxidation was not observed at the limit of the anodic potential (2.5 V vs. s.c.e.).

Oxygen-17 N.M.R. Spectra of C(2)-Substituted Thioxanthones, Thioxanthone Sulphoxide, and Thioxanthone Sulphone

The 17O n.m.r. spectra of a series of 17O-enriched 2-substituted thioxanthen-9-ones are reported.Analysis of the 17O chemical shifts using the dual substituent parameter (DSP) method shows that the carbonyl oxygen chemical shift correlates precisely with ?l and ?R(+) even though the carbonyl group is meta to the C(2)-substituent; interaction between them is apparently mediated by the heterocyclic sulphur.The carbonyl 13C chemical shifts do not correlate well with the C(2)-substituent.Enrichment with oxygen-17 was accomplished using 17O-enriched water in hydrochloric acid-dioxane.Under these conditions, thioxanthenone S-oxide reacts to produce small amounts of enriched thioxanthenone and thioxanthenone S,S-dioxide in addition to enriched starting material.

OXIDATION OF SULFIDES TO SULFOXIDES BY 1-ACETYL-v-TRIAZOLOPYRIDINE/HYDROGEN PEROXIDE SYSTEM

Dialkyl, diaryl, and mixed alkyl aryl sulfides are convertd to sulfoxides in high yield by the use of the 1-acetyl-v-triazolopyridine/hydrogen peroxide biphasic system.