(tributylphosphoranylidene)acetonitrile in benzene T=60°C; sealed vessel;

potassium hydroxide; p-toluenesulfonyl chloride in 1,4-dioxane T=65°C; Further byproducts given;

sodium hydroxide; p-toluenesulfonyl chloride in 1,4-dioxane T=20°C;

potassium hydroxide; p-toluenesulfonyl chloride in 1,4-dioxane T=60°C;

in tetrahydrofuran byproducts: LiOTf; under Ar, soln. of phenylacetylene (1.0 mmol) added to W complex in THF at -78°C, after 0.5 h of stirring, phenylacetylene added, mixt. heated at reflux for 2 h, cooled to ambient temp., MeOTf added; volatiles evapd. in vac. (ca. 0.01 mbar), raw product purified by columnchromy. (SiO2, -20°C, petroleum ether/Et2O, 10:1), product obtai ned from 2nd fraction, detd. by 1H NMR, 13C NMR, 31P NMR, 29Si NMR, IR, MS;

potassium hydroxide 0.1 h; microwave irradiation;

lithium hydride in dimethyl sulfoxide Heatingdifferent basis as 'template' agents, other solvents;

Cp*Si(1+)* B(C6F5)4(1-) in dichloromethane-d2 T=-30°C; 168 h; Inert atmosphere;

di-tert-butyl peroxide in benzene T=20°C; 48 h; Irradiation; Further byproducts given;

di-tert-butyl peroxide in benzene 48 h; Ambient temperatureIrradiation;