Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Molybdenyl chloride

Chemical deoxygenation of sulfoxides to sulfides was carried out by refluxing in aqueous-alcoholic solutions with stannous chloride (yields 62-93%) [186 Procedure 36, p. 214), with titanium trichloride (yields 68-91%) [203], by treatment at room temperature with molybdenum trichloride (prepared by reduction of molybdenyl chloride M0OCI3 with zinc dust in tetrahydrofuran) (yields 78-91%) [216], by heating with vanadium dichloride in aqueous tetrahydrofuran at 100° (yields 74-88%) [216], and by refluxing in aqueous methanol with chromium dichloride (yield 24%) [190], A very impressive method is the conversion of dialkyl and diaryl sulfoxides to sulfides by treatment in acetone solutions for a few minutes with 2.4 equivalents of sodium iodide and 1.2-2.6 equivalents of trifluoroacetic anhydride (isolated yields 90-98%) [655]. [Pg.88]

Miscellaneous derivatives are hydrolyzed back to the starting carbonyl compounds. Hienylhydtazones of ketones are converted into the parent ketones tqion treatment with manganese dioxide.Tosylhydra-zones react with molybdenyl chloride or tungsten tetrafluoride to give both aldehydes and ketones. Sodium peroxide converts aldoximes into carboxylic acids. [Pg.231]

See other pages where Molybdenyl chloride is mentioned: [Pg.267]    [Pg.267]    [Pg.1017]    [Pg.20]    [Pg.523]    [Pg.523]    [Pg.128]    [Pg.128]    [Pg.109]    [Pg.523]    [Pg.267]    [Pg.267]    [Pg.1017]    [Pg.20]    [Pg.523]    [Pg.523]    [Pg.128]    [Pg.128]    [Pg.109]    [Pg.523]    [Pg.159]    [Pg.270]   
See also in sourсe #XX -- [ Pg.248 ]



SEARCH



© 2024 chempedia.info