Chemistry Letters p. 19 - 20 (1983)
Update date:2022-08-05
Topics:
Yoneda, Norihiko
Sato, Haruhiko
Fukuhara, Tsuyoshi
Takahashi, Yukio
Suzuki, Akira
In a HF-SbF5 solution at -20 -ca.30 deg C under atmospheric pressure, ketones having alkyl groups with five or more carbon atoms underwent the reaction to give corresponding oxo carboxylic acids without any β-scission processes which occur readily in alkyl cations derived by protolysis of alkalnes with seven or more carbon atoms.Tertiary C-H bond located at δ or further away from the oxo group in the substrates could react exclusively to give (ω-1)-oxo-2,2-dimethyl carboxylic acids at -20 deg C.
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