51036-93-2

Upstream product

• 106-42-3 para-xylene 
• 102018-46-2 3,4-Dihydro-5,8-dimethyl-3-phenylnaphthoesaeure-⁽¹⁾ 
• 71995-05-6 3-(2,5-Dimethylbenzoyl)-2-phenylpropionsaeure 
• 1131-15-3 2-phenylsuccinic anhydride 
• 109614-87-1 5,8-Dimethyl-3-phenyl-naphthoesaeure-⁽¹⁾ 
• 101742-96-5 5,8-Dimethyl-2-phenyl-tetralol-1 
• 571-58-4 1,4-dimethylnaphthalene 
• 369-57-3 benzenediazonium tetrafluoroborate 
• 18612-88-9 1-methyl-7-phenylnaphthalene 
• 77-78-1 dimethyl sulfate 

Relevant academic research and scientific papers

MISE EN EVIDENCE DE LA DEPROTONATION DU COMPLEXE IPSO-ARENIUM OBTENU EN PHENYLATION CATIONIQUE DU DIMETHYL-1,4 NAPHTALENE

The phenyl cations obtained from the thermolysis of benzenediazonium tetrafluoroborate react with 1,4-dimethylnaphthalene in DMSO to give 1-methyl 4-methylene 1-phenyl 1,4-dihydronaphthalene as well as the phenylation products at positions 2,5 and 6.The formation of the former provides direct evidence for the attack of C6H5+ ipso to the methyl group.Either in pure 1,4-dimethylnaphthalene or in acetonitrile solution, the deprotonation of the ipso-arenium ions has not been observed and the main reaction was the 1-2 migration of the phenyl group.The reactivity of the ipso position in regard to attack by phenyl cations and the reactivity of the 2 position are very similar. 1-methyl 4-phenyl naphthalene has not been detected by G L C so that demethylphenylation of 1,4-dimethylnaphthalene must be negligible.