Alkoxytelluration of Allylbenzene

Resumo

(2-Alkoxy-3-phenylpropyl)trichlorotellanes were synthesized by regioselective reaction of tellurium tetrachloride with allylbenzene in the system MeOH–CH₂Cl₂, as well as by nucleophilic substitution of chlorine in trichloro(2-chloro-3-phenylpropyl)tellane in MeOH–CH₂Cl₂ and EtOH–CHCl₃. Allylbenzene reacted with tellurium tetrabromide on heating in methanol or ethanol. The reduction of (2-alkoxy-3-phenylpropyl) trihalotellanes with NaBH₄ in H₂O–THF gave 1,2-bis(2-alkoxy-3-phenylpropyl)ditellanes.