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SYNTHESIS OF SOME SUBSTITUTED NAPHTHALENES VIA BENZYNE AND THEIR 13C-NMR AND 'H-NMR STUDIES | ||
Journal of Sciences, Islamic Republic of Iran | ||
مقاله 7، دوره 4، شماره 2، شهریور 1993 اصل مقاله (325.59 K) | ||
چکیده | ||
Aprotic diazotization of anthranilic acid with isoamylnitrite or amylnitrite gave benzenediazonium-2- carboxylate. Subsequent thermal decomposition of this diazonium salt (in situ) in 1,2-dichloroethane as a solvent at 85OC and in the presence of 2,5-diethyl-3,4-diphenylcyclopentadienonaes a trapping agent gave 1,4-diethyl-2, 3-diphenylnaphthalene in high yield, after loss of carbon monoxide. Also, thermal decomposition of this diazonium salt (in situ) was carried out in 1,1 ,2-trichloroethane as a solvent at 108OC in the presence of 2,5-dimethyl-3,4-diphenylcyclopentadienone (monomer) and after loss of carbon monoxide, 1,4-dimethyl- 2,3-diphenylnaphthalene was obtained in excellent yield. These naphthalene derivatives were studied by IR, 'H-NMR, 13C-NMR mass spectra and elemental analysis | ||
عنوان مقاله [English] | ||
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چکیده [English] | ||
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