57444-39-0

Upstream product

• 27892-72-4 4-nitrophenyl-1,2,3-selenadiazole 
• 52376-81-5 p-Nitroacetophenone semicarbazone 
• 100-19-6 (4-nitrophenyl)ethanone 

Downstream Products

• 81888-41-7 1-Methylselanylethynyl-4-nitro-benzene 
• 65456-34-0 5-(4-Nitro-phenyl)-[1,3]thiaselenole-2-thione 

Relevant academic research and scientific papers

Preparation of 2-Arylethynylselanylacetonitriles from 4-Aryl-1,2,3-selenadiazoles

Base decomposition of 4-(substituted phenyl)-1,2,3-selenadiazoles at room temperature resulted in 2-(substituted phenyl)-ethynylselenolate anions, which were immediately reacted with bromoacetonitrile to give a series of 2-(substituted phenyl)ethynylselan

UNSATURATED THIOLATES AND THEIR ANALOGS IN CYCLOADDITION REACTIONS. XIII. REACTIONS OF POTASSIUM 2-ARYL- AND 2-ALKYLETHYNESELENOLATES WITH HETEROCUMULENES

Potassium 2-aryl- and 2-alkylethyneselenolates, obtained by the decomposition of 4-substituted 1,2,3-selenadiazoles, enter into a cyclization reaction with phenyl isothiocyanate to form isomeric N-(5-R-1,3-thiaselenol-2-ylidene)phenylamines.Measurement of the relative rate constants for cyclization of 2-(p-R-aryl)ethyneselenolates at the thione bond shows that the reaction is accelerated by donating substituents and retarded by withdrawing substituents.