Seleninyl halides

Trifluoromethaneseleninyl chloride (3) can be prepared by the reaction of trifluoromethane-sclcnenyl chloride with ozone whereas nitrogen dioxide transforms the initially formed acid choride to the anhydride (CF3Se0)20.316 Trifluoromethaneselenenic acid chloride and bromide are oxidized with hypofluorous acid in acetonitrile to the corresponding seleninyl halides 3 and 4, respectively.204 When an excess of hypofluorous acid is employed, the selenenyl halides and trifluoromethaneseleninic acid (5) are oxidized to the anhydride 6.304... 

Suiphinyl and Seleninyl Halides.—Chlorinolysis of A -(alkylsulphinylmethyl)-phthalimides [PhtCH2S(0)R - RS(0)Cir and the formation of ff-chloro-alkane-sulphinyl chlorides from reactive methylene compounds with SOClj and pyridine illustrate new examples of known methods of preparation. The latter compounds have been shown to yield a-chloro-sulphines on reaction with a tertiary amine (MeCHClSOCl - MeCCl=S=0 MeCCl2SOCl). ... 

See Fluorine Hydrogen fluoride, Seleninyl fluoride See other INORGANIC ACIDS See related NON-METAL HALIDES... 

Nonmetal Halides. White and red phosphorus incandesce with boron triiodide. White phosphorus explodes with seleninyl chloride. Red phosphorus incandesces in seleninyl chloride and reacts vigorously on warming with sulfuryl or disulfuryl chlorides and violently with disulfur dibromide.23... 

Nonmetal Halides. Reacts explosively or forms shock-sensitive mixtures with diselenium dichloride and seleninyl chloride,31,32 PC13 vapor or liquid,33 sulfur dichloride or dibromide, and PBr3 and phosgene.32... 

Nonmetal Halides. Vigorous or explosive reactions occur with phosphorus tribromide on addition of drops of water,20 phosphorus trichloride, phosphorus pentachloride,21 diselenium dichloride,22 sulfur dichloride, boron tribromide, sulfur dibromide,17 seleninyl bromide,23 phosphoryl chloride, sulfinyl fluoride, silicon tetrachloride, and silicon tetrafluoride.24... 

Sulphenyl Halides.— Illustrative procedures for the synthesis of sulphenyl halides reported during the period under review employ well-established methods, Tetrachloropyridine-4-sulphenyl chloride is obtained from the corresponding disulphide by chlorinolysis, while the corresponding sulphonyl chloride is formed in AcOH or hydroxylic media. 2-Methyl-2-propanesulphenyl iodide is obtained from the thiol with la, or from the sulphenamide with HI addition reactions of selenium dichloride, or seleninyl chloride, to acetylene are specific examples of generally applicable reactions - (HC=CH + SeCU C1CH=CH-Se-Cl). The chlorination of CSa under activated charcoal catalysis has been developed as a continuous process, giving trichloromethanesulphenyl chloride. 

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