REACTION BEHAVIOR OF CARBON–CARBON AND CARBON–HYDROGEN BONDS IN SUPER ACIDS. CARBOXYLATION OF ALKYL METHYL KETONES WITH CARBON MONOXIDE AND WATER
作者:Norihiko Yoneda、Haruhiko Sato、Tsuyoshi Fukuhara、Yukio Takahashi、Akira Suzuki
DOI:10.1246/cl.1983.19
日期:1983.1.5
In a HF–SbF5 solution at −20∼30 °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 alkanes with seven or more carbon atoms. Tertiary C–H bond located at δ or further away from the oxo group in the substrates
在 HF-SbF5 溶液中,在-20~30 °C 的大气压下,具有五个或更多碳原子的烷基的酮反应生成相应的氧代羧酸,而没有任何β-断裂过程,而β-断裂过程很容易发生在由以下方法衍生的烷基阳离子中具有七个或更多碳原子的烷烃的质子分解。位于 δ 处或远离底物中氧代基团的叔 C-H 键可以在 -20°C 下专门反应生成 (ω-1)-氧代-2,2-二甲基羧酸。