Aldehydes electrochemical fluorination

Electrochemical fluorination. The a-fluorination of /3-lactams, the conversion of aldehydes to acyl fluorides, and of phenyltellurides (PhTeR) to difluoro-telluranes (PhTeF2R) are some of the transformations that can be performed electrochemically in MeCN in the presence of nHF-Et,N ( = 3 or 5). 

Abe, T. Nagase, S. Baba, H. The electrochemical fluorination of aliphatic primary monohydric alkohols and aldehydes. Bull. Chem. Soc. Jpn. 1976, 49, 1888-1892. 

Chen S-Q, Hatakeyama T, Fukuhara T, Hara S, Yoneda N (1997) Electrochemical fluorination of aliphatic aldehydes and cyclic ketones using EtsN-flHF electrolyte. Electrochim Acta 42 1951-1960... 

The electrochemical behavior of dithioacetals under fluorination conditions (DME-Et N 3HF, divided cell, Pt electrodes) deserves attention. Anodic oxidation of 2,2-disubstituted 1,3-dithianes and thioacetals of ketones produced the corresponding geminal fluoro compounds, while thioacetals of aromatic and aliphatic aldehydes afforded geminal difluoro- and monofluoro thioethers, respectively [147] (see Chapter 26). 

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