beim Schmelzen;

in tetrahydrofuran T=-78 - 25°C; 6 h;

PPA T=125 - 150°C; 2 h;

in tetrahydrofuran; diethyl ether under N2, addn. of soln. oftriphenylstannyliodide in THF to soln. of 2-(lithiomethyl)benzothiazole in Et2O, stirring at -78 ° C for 1 h, warming up to room temp.; evapn., residue redissolved in cyclohexane/ethyl acetate (1:3), washing with water, organic layer dried over MgSO4, major products are Ph3SnSnPh3 and 1,2-dibenzothiazolylethane;

in tetrahydrofuran; diethyl ether under N2, addn. of a soln. of 2-lithiobenzothiazole in Et2O to soln. of triphenylstannylmethyliodide in THF, stirring at -78 ° C for 1 h, warming up to room temp.; evapn. resdue redissolved in cyclohexane/ethyl acetate (1:3), washing with water, organic layer dried over MgSO4, solvent removal, crystn. of Ph3Sn2Ph3 from petroleum ether;

microwave irradiation;

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