81639-84-1

Upstream product

• 372-09-8 cyanoacetic acid 
• 103-79-7 1-phenyl-acetone 
• 81639-79-4 Z-1-cyano-2-methyl-3-phenylpropene 
• 81639-87-4 (E)-4-(4-Chloro-phenyl)-3-methyl-but-2-enenitrile 
• 81639-88-5 (E)-4-(4-Bromo-phenyl)-3-methyl-but-2-enenitrile 
• 2537-48-6 diethyl 1-cyanomethylphosphonate 

Downstream Products

• 83303-64-4 3-Methyl-4-phenylbutanenitrile 
• 81639-79-4 Z-1-cyano-2-methyl-3-phenylpropene 
• 29161-81-7 trans-2-phenyl-2-methylcyclopropane-1-carbonitrile 
• 14944-23-1 3-methyl-1-tetralone 
• 7315-68-6 3-methyl-4-phenylbutanoic acid 

Relevant academic research and scientific papers

The Photochemistry of 1-Cyano-2-methyl-3-phenylpropene and Ring substituted Derivatives

The E- and Z-isomers of 1-cyano-2-methyl-3-phenylpropene and ring-substituted derivatives of the E-isomer, are shown to fluoresce and undergo Z-E-isomerization and di-?-methane rearrangement on irradiation.The rate constants for these processes, obtained from fluorescence lifetimes and quantum yields, can be analysed in terms of an initial interaction between the two ? systems, facilitated by partial charge-transfer, followed by two diverging pathways, one, towards a diradicaloid species leading to cyclopropane formation, the other towards a 'zwitterionic' species and relaxation to the ground state and resulting in singlet state Z-E-isommerization.

Synthese de methoxycarbonylindenes, dihydro-1,2 naphtalenes et benzocycloheptene. Obtention des indanones-1, des tetralones-1 et de la benzosuberone correspondantes

The synthesis of methoxycarbonylindenes, 1,2-dihydro-naphtalenes, and benzocycloheptene starting from the corresponding 1-indanones, 1-tetralones, and benzosuberone is reported.The starting ketones were synthesized by methods described in the literature which were optimized; in some cases new processes are described.