The present invention relates to the use of telluroxides as mild and selective oxidizing agents serving to oxidize certain functions, notably >C.dbd.S groups, in the presence of other relatively easily oxidized functions which remain unaffected; telluroxides of interest as oxidizing agents include, for example, compounds of the formula: ##STR1## wherein R and R.sup.1, which may be the same or different, each represent an optionally substituted aryl or heterocyclic group; or R and R.sup.1 together with the tellurium atom therebetween represent a heterocyclic ring, which may contain one or more further heteroatoms, and which may carry substituents and/or fused aromatic rings.
Bis(p-methoxyphenyl) telluroxide: a new, mild oxidising agent
作者:Derek H. R. Barton、Steven V. Ley、Clive A. Meerholz
DOI:10.1039/c39790000755
日期:——
Bis(p-methoxyphenyl) telluroxide is a mild and highly selective oxidising reagent for the conversion of thiocarbonyl groups into their oxo analogues and thiols into disulphides, and for the oxidation of a limited number of nitrogeneous compounds although many other easily oxidised functions are not affected.