ChemInform Abstract: Synthesis of 2,8-Dichlorophenoxaselenine and Some 10,10-Disubstituted Derivatives.
Abstract
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ChemInform Abstract
Heating of dichlorophenoxatellurine (II) with equimolar amounts of selenium provides the title oxaselenine (III) which gives the 10,10-dihalo-derivatives (IV) on treatment with chlorine or bromine in CCl4.