BF<sub>3</sub>·2CF<sub>3</sub>CH<sub>2</sub>OH (BF<sub>3</sub>·2TFE), an Efficient Superacidic Catalyst for Some Organic Synthetic Transformations
作者:G. K. Surya Prakash、Thomas Mathew、Eric R. Marinez、Pierre M. Esteves、Golam Rasul、George A. Olah
DOI:10.1021/jo0604181
日期:2006.5.1
acid strength to at least that of 100% anhydrous sulfuric acid for various acid-catalyzed organic transformations such as isomerizations, rearrangements, ionic hydrogenation of various ketones, and aromatics with triethylsilane and nitration of aromatics with metal nitrate. Studies of the pivalaldehyde−methyl isopropyl ketone rearrangement and the benzopinacol to phenanthrene transformation suggest
发现BF 3 ·2CF 3 CH 2 OH络合物是一种非常有效的超酸性催化剂,其酸强度至少可与100%无水硫酸相比,可用于各种酸催化的有机转化,如异构化,重排,各种酮的离子加氢,芳族化合物与三乙基硅烷的反应,以及芳族化合物与金属硝酸盐的硝化作用。对新戊醛-甲基异丙基酮重排和苯并频哪醇向菲的转化的研究表明,该复合物的酸度与100%无水硫酸相当。1:2三氟化硼-三氟乙醇配合物的结构和性质已使用NMR(1 H,13 C,19 F,11 B)和DFT计算在B3LYP / 6-311 ++ G ** // B3LYP / 6-31G *级别进行。