16723-58-3

Basic information

• Product Name: Isothiochroman-4-one 2,2-dioxide
• Synonyms: Isothiochroman-4-one 2,2-dioxide;2,2-dioxo-1H-isothiochromen-4-one
• CAS NO: 16723-58-3
• Molecular Formula: C₉H₈O₃S
• Molecular Weight: 196.22302
• Mol File: 16723-58-3.mol
• Article Data: 5

Chemical Properties

• Melting Point: 151-152 °C(Solv: acetic acid (64-19-7))
• Boiling Point: 457.3±34.0 °C(Predicted)
• Appearance: /
• Density: 1.408±0.06 g/cm3(Predicted)
• CAS DataBase Reference: Isothiochroman-4-one 2,2-dioxide(CAS DataBase Reference)
• NIST Chemistry Reference: Isothiochroman-4-one 2,2-dioxide(16723-58-3)
• EPA Substance Registry System: Isothiochroman-4-one 2,2-dioxide(16723-58-3)

Safety Data

• Hazardous Substances Data: 16723-58-3(Hazardous Substances Data)

Upstream product

• 103-46-8 S-benzylmercaptoacetic acid 
• 612-13-5 2-cyanobenzyl chloride 
• 1393097-94-3 C₁₂H₁₃NO₄S 
• 1267798-71-9 C₁₂H₁₃NO₄S 
• 1267655-01-5 C₁₁H₁₁NO₄S 
• 1156038-75-3 C₁₂H₁₃NO₂S 
• 1157016-43-7 C₁₁H₁₁NO₂S 
• 4426-76-0 2-isothiochroman-4-one 

Downstream Products

• 1393097-98-7 C₁₅H₁₄N₂O₂S 
• 28272-96-0 2-vinylbenzaldehyde 
• 95-13-6 1-indene 
• 916420-33-2 C₉H₁₁NO₂S 

Relevant articles and documents

Unexpected pyrolytic behaviour of substituted benzo[c]thiopyran and thieno[2,3-c]thiopyran s,s-dioxides

Flash vacuum pyrolysis (FVP) of benzo[c]thiopyran S,S-dioxide (1) results in formation of indene and 2-vinylbenzaldehyde as previously described. A range of eight analogues with various substitution patterns are found to behave differently. In general, there is no extrusion of SO2 to give products analogous to indene, but unsaturated carbonyl products analogous to 2-vinylbenzaldehyde are formed in most cases by way of ring expansion to a 7-membered ring sultine, extrusion of SO, and intramolecular hydrogen atom transfer. Other processes observed include formation of anthracene via an isomeric 7-membered sultine with loss of SO, CO and methane or butane, and formation of 4-ethylidene-4,5- dihydrocyclobuta[b]thiophenes by way of SO loss, a radical rearrangement, and extrusion of acetone. The analogues with a halogen substituent at position 8 on the benzene ring require a higher temperature to react and give naphthalene resulting from net elimination of HX and SO2. The X-ray crystal structure of 1 is also reported.

METHODS OF TREATMENT OF AMYLOIDOSIS USING BI-CYCLIC ASPARTYL PROTEASE INHIBITORS

The invention relates to novel compounds and methods of treating diseases, disorders, and conditions associated with amyloidosis. Amyloidosis refers to a collection of diseases, disorders, and conditions associated with abnormal deposition of A-beta protein.

α-Oxosulfines: reactions with alkenes and alkynes

Thiochroman-4-one 1,1-dioxide has been successfully converted into 3-sulfinylthiochroman-4-one 1,1-dioxide and the reactions of this α-oxosulfine with a series of alkenes have been carefully investigated.The α-oxosulfine was found to react as a Diels-Alde