Preparation of 1-telluroalkylphosphonates: new synthetic route to vinyl tellurides
Abstract
Reactions of the lithio anions derived from diethyl aklyphosphonates 1 with benzenetellurenyl iodide 5 give diethyl 1-(phenyltelluro)alkylphosphonates 2. Diethyl (alkyltelluromethyl)phosphonates 4 are prepared by the treatment of lithium tellurolates 3 with iodomethylphosphonates 6. (Phenyltelluromethyl)phosphonate and NaH reacted with aldehydes to produce vinyl tellurides 7.