2-Chloroalkyl-2-naphthyltellurium dichloride

Chloroalkyl-2-naphthyltellurium dichloride (general procedure). 2-Naphthyltellurium trichloride (2.98 g, 0.83 mmol) is heated under reflux with the olefin (1.2 mmol) in dry, ethanol-free CHCI3 (15 mL) until the trichloride has dissolved (0.5-1 h). Filtration from a small amount of elemental Te and evaporation gives an oil or a semi-solid that is recrystallized from a large amount of petroleum ether at 40-60°C. The reactions with propene and 2-butenes are performed in a sealed tube at 80°C. The yields are in the range 70-95%. 

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See also in sourсe #XX -- [ ]

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