Organic tellurium and selenium chemistry. Reduction of tellurides, selenides, and selenoacetals with triphenyltin hydride

Organometallic Reagents for Synthetic Purposes: Tellurium

“…Phenyl alkyl tellurides undergo mild reductions with Ph3SnH furnishing the corresponding alkanes 36 . Since the starting tellurides are easily prepared from nucleophilic substitution of alkyl halides with tellurolate anions, the overall sequence offers a mild reduction methodology for alkyl halides.…”

Chemoenzymatic approaches to obtain chiral-centered selenium compounds

“…The protocol was based on the inversion of configuration of the phenylethanol derivatives by their reactions with phenylselenocyanide and tributylphosphine (Scheme 1). 10 Next, we performed the synthesis of benzylselenides derivatives (4e6). Initially, mesylated phenylethanol derivatives were prepared in situ from their corresponding alcohols and mesyl chloride (MsCl).…”

Aqueous Phase One‐Electron Reduction of Sulfonium, Selenonium and Telluronium Salts

“…[34] Diphenyl methyl telluronium tetrafluoroborate [36] and ethyl methyl phenyl telluronium tetrafluoroborate [37] were prepared by literature methods. The following materials were prepared in analogy with published procedures (alkyl aryl selenides [38] and tellurides [39] ) and were used as reference compounds in the GC analyses: cyclohexyl phenyl selenide, [40] cyclohexyl phenyl telluride, [41] ethyl phenyl sulfide, [42] ethyl phenyl selenide, [43] ethyl phenyl telluride, [44] methyl phenyl selenide [45] and methyl phenyl telluride. [44] Preparation GC analyses were performed on a Varian 3400 GC fitted with a capillary Rescom SE 54 column and a flame ionization detector.…”