Electrolytic Partial Fluorination of Organic Compounds. 17. Regiospecific Anodic Fluorination of Sulfides Bearing Electron-Withdrawing Substituents at the Position .alpha. to the Sulfur Atom
摘要:
Regiospecific monofluorination of various sulfides bearing electron-withdrawing substituents, cyano, ester, acyl, amino, and phosphonate groups,at their alpha-positions was successfully carried out by the anodic oxidation of the sulfides in Et(3)N . 3HF/MeCN using an undivided cell. Fluorine was introduced at the position alpha to the sulfur atom selectively. Fluorination of alpha-(phenylthio)-substituted cyclic carbonyl compounds was also successful. Furthermore, anodic alpha,alpha-difluorination of ethyl alpha-(phenylthio)acetate was also successfully carried out although a large amount of electricity was required.
Mass spectrometry in structural and stereochemical problems. CCXII. Electron impact induced triple hydrogen rearrangements and other fragmentations of alkyl vinyl ethers and thioethers
Electrolytic Partial Fluorination of Organic Compounds. 17. Regiospecific Anodic Fluorination of Sulfides Bearing Electron-Withdrawing Substituents at the Position .alpha. to the Sulfur Atom
Regiospecific monofluorination of various sulfides bearing electron-withdrawing substituents, cyano, ester, acyl, amino, and phosphonate groups,at their alpha-positions was successfully carried out by the anodic oxidation of the sulfides in Et(3)N . 3HF/MeCN using an undivided cell. Fluorine was introduced at the position alpha to the sulfur atom selectively. Fluorination of alpha-(phenylthio)-substituted cyclic carbonyl compounds was also successful. Furthermore, anodic alpha,alpha-difluorination of ethyl alpha-(phenylthio)acetate was also successfully carried out although a large amount of electricity was required.