29304-62-9

Upstream product

• 22009-37-6 7-methyl-3,4-dihydro-2H-naphthalen-1-one 
• 108-86-1 bromobenzene 
• 27331-24-4 1-phenyl-4-(p-tolyl)buta-1,3-diene 
• 205880-51-9 1-methyl-4-(4-phenylbut-3-yn-1-yl)benzene 
• 4521-22-6 4-(4-methylphenyl)butyric acid 
• 160699-02-5 4-(4-methylphenyl)butanoyl chloride 
• 6936-14-7 1,2-dihydro-4-(4-methylphenyl)naphthalene 

Downstream Products

• 19723-03-6 7-methyl-1-phenylnaphthalene 

Relevant academic research and scientific papers

FeCl3-catalyzed intramolecular hydroarylation of alkynes

The intramolecular hydroarylation of alkynes using a substoichiometric amount of FeCl3 is described. When starting from tetrasubstituted substrates, products resulting from an unexpected toluene (or xylene) elimination are isolated in good yields.

Thermolysis of Phenyl-substituted 1,2-Dihydronaphthalenes. Evidence for Diphenylbutadienes as Intermediates

The thermal rearrangement of the four phenyl-substituted 1,2-dihydronaphthalenes (15), (16), (19), and (20) have been studied by flash vacuum pyrolysis (FVP).By using the deuteriated starting compounds -(15) and -(16), it has been established that 1- and 4-phenyl-1,2-dihydronaphthalene (15) and (19) and 2- and 3-phenyl-1,2-dihydronaphthalene (16) and (20) are interconverted via the intermediates 1- and 2-phenyl-2,3-dihydronaphthalene (17) and (18), respectively, through two consecutive, sigmatropic 1,5-hydrogen shifts.In both processes partial oxidation to the corresponding phenylnaphthalenes (21) and (22) takes place.The deuterium distribution in the pyrolysis products suggests that in the hot zone diphenylbutadienes are formed, which are reconverted into phenyldihydronaphthalenes upon reaching the cold receiving flask.By FVP of 4-(p-tolyl)-1,2-dihydronaphthalene (34), 1-phenyl-1-(p-tolyl)butadiene (39), and 1-phenyl-4-(p-tolyl)butadiene (45) the latter type of interconversion could be confirmed.