42506-09-2

Basic information

• Product Name: (E)-1-(benzylthio)-1-(methylthio)-2-nitroethene
• CAS NO: 42506-09-2
• Molecular Weight: 241.335
• Mol File: 42506-09-2.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: (E)-1-(benzylthio)-1-(methylthio)-2-nitroethene(CAS DataBase Reference)
• NIST Chemistry Reference: (E)-1-(benzylthio)-1-(methylthio)-2-nitroethene(42506-09-2)
• EPA Substance Registry System: (E)-1-(benzylthio)-1-(methylthio)-2-nitroethene(42506-09-2)

Safety Data

• Hazardous Substances Data: 42506-09-2(Hazardous Substances Data)

Upstream product

• 100-39-0 benzyl bromide 
• 25963-52-4 dipotassium 2-nitroethylene-1,1-dithiolate 
• 74-88-4 methyl iodide 

Relevant articles and documents

Synthesis of six- to nine-membered ring oximinoorthodithiolactones by cyclization of nitroketene S,S-acetals in trifluoromethanesulfonic acid

2-Nitro-1,1-bis(phenylalkylthio)ethene or 1-(methylthio)-2-nitro-1-(phenylalkylthio)ethene derivatives tethered to an aromatic ring undergo a fast intramolecular cyclization in trifluoromethanesulfonic acid, with the intermediate formation of dications, which can be detected by NMR spectroscopy. Quenching with methanol at low temperature affords cyclic orthothioesters of isothiochromanones, 4,5-dihydrobenzo[d]-thiepin-1-one, 5,6-dihydro-4H-benzo[d]thiocin-1-one and 8,9,10,11-tetrahydro-7-thiabenzocyclononen-5-one oximes. The yields are usually fair to good, except for the nine-membered ring derivatives.