Methyl 2-pyridyl sulphoxides

Recently, it has been reported that methyl 2-pyridyl sulphoxides (10) and related pyridyl derivatives (11) (see Schepie 25) are good phase transfer catalysts for SN2 reactions of various primary or secondary alkyl halides in a two-phase reaction system and for the alkylation of phenylacetonitrile or phenylacetone with alkyl halides in liquid-liquid two-... [Pg.573]

Electron Diffraction.—Among completed electron-diffraction studies are ethyl methyl sulphide, chloromethyl methyl sulphide, methyl phenyl sulphide, di-(2-pyridyl) sulphide, sulphones, sulphoxides and sulphones, and trifluoro-methanesulphonyl chloride. A number of precise analyses of gas-phase conformational equilibria have emerged. Methyl ethyl sulphide shows a preference for the gauche conformation rather than for the trans form. ... [Pg.7]

Useful products are also obtained by oxidizing alkyl and aryl pyridyl sulphides. With hydrogen peroxide, 2-methylthiopyridine and 6-methyl-thionicotinamide give the sulphoxides, and perbenzoic acid produces the sulphoxide from 2-benzylthiopyridine <. Hydrolysis of the dibromide from 2-pyridyl sulphide gives the sulphoxide" . More commonly the oxidation of... [Pg.391]

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