1: 1-Bromonaphthalene With magnesium in tetrahydrofuran; ethylene dibromide 2 h; Reflux; 2: tin(IV) chloride in tetrahydrofuran; ethylene dibromide T=20°C; Reflux;

in tetrahydrofuran; benzene refluxing of a soln. of 1-naphtnylmagnesium bromide in THF with a soln.of SnCl4 in benzene for 15 h; addn. of the soln. to ice, addn. of HCl, extg. (toluene/ether), evapn. of the solvent, grinding of the residue with toluene, elem. anal.;

in diethyl ether; toluene; benzene boiling in benzene-toluene under reflux;

tin(IV) chloride

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