74143-80-9

Basic information

• Product Name: 3,3-diphenyl-1-p-tolyl-2-azaprop-2-en-1-one
• Synonyms: 3,3-diphenyl-1-p-tolyl-2-azaprop-2-en-1-one
• CAS NO: 74143-80-9
• Molecular Weight: 299.372
• Mol File: 74143-80-9.mol
• Article Data: 4

Chemical Properties

• CAS DataBase Reference: 3,3-diphenyl-1-p-tolyl-2-azaprop-2-en-1-one(CAS DataBase Reference)
• NIST Chemistry Reference: 3,3-diphenyl-1-p-tolyl-2-azaprop-2-en-1-one(74143-80-9)
• EPA Substance Registry System: 3,3-diphenyl-1-p-tolyl-2-azaprop-2-en-1-one(74143-80-9)

Safety Data

• Hazardous Substances Data: 74143-80-9(Hazardous Substances Data)

Upstream product

• 76-93-7 Benzilic acid 
• 104-85-8 para-methylbenzonitrile 
• 74143-79-6 4,4-Diphenyl-2-p-tolyl-4H-oxazol-5-one 
• 17599-59-6 diphenylmethyleneaminotrimethylsilane 
• 874-60-2 4-methyl-benzoyl chloride 
• 1013-88-3 Benzophenone imine 

Downstream Products

• 84809-90-5 (C₆H₅)2CNHC(O)(C₆H₄CH₃)⁽¹⁺⁾*SbCl₆^(1-)=(C₆H₅)2CNHC(O)(C₆H₄CH₃)(SbCl₆) 
• 119-61-9 benzophenone 
• 92-52-4 biphenyl 
• 613-33-2 (4,4'-dimethyl-1,1'-biphenyl) 
• 644-08-6 4-Methylbiphenyl 
• 100-47-0 benzonitrile 
• 104-85-8 para-methylbenzonitrile 

Relevant articles and documents

Thermolysis of Polyazapentadienes. Part 11. Concerted and Free Radical Mechanisms in 2-Aza Enone and 2-Aza Enthione Pyrolyses: Crystal and Molecular Structures of 3-Dimethylamino-1-p-tolyl-2-azaprop-2-en-1-one and 3-Dimethylamino-1-phenyl-2-azaprop-2-ene-1-thione

Flash vacuum pyrolysis of the dimethylamino-azapropenones (7)-(9) and -azapropenethione (12) gives nitriles and amides (or thioamide) in yields of ca. 30percent by an electrocyclisation-ring cleavage mechanism.This is a minor pathway for the triarylazapropenones (14) and (15) for which homolytic cleavage of the C-N bond gives rise to the major products.The X-ray crystal structures of (10) and (12) show that the conjugated systems are almost planar in the s-Z conformation, as required for the electrocyclic ring closure.

A Facile Method for the Synthesis of Substituted N-Methylenecarboxamides and Alkyl N-Methylenecarbamates

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