Reactions of cyclopropyl aryl ketones with α-ketoacetic acids catalyzed by C<sub>8</sub>F<sub>17</sub>SO<sub>3</sub>H in fluorous phase
作者:Yong-Hua Yang、Ying-Hao Liu、Min Shi
DOI:10.1039/b610518a
日期:——
In this paper, we successively apply the "fluorous biphase system" (FBS) technique to the reactions of cyclopropyl aryl ketones with alpha-ketoacetic acids catalyzed by C8F17SO3H (30 mol%) using perfluorodecalin (C10F18, cis- and trans-mixture) and DCE as a co-solvent to give the corresponding products 5,6-dihydropyran-2-ones in good yields. Moreover, the reaction system can be performed for several
在本文中,我们先后将“氟双相体系”(FBS)技术应用于环丙芳基酮与C8F17SO3H(30 mol%)使用全氟萘烷(C10F18,顺式和反式混合物)催化的α-酮乙酸的反应中。 DCE作为助溶剂,以高收率得到相应的产物5,6-二氢吡喃-2-酮。而且,反应系统可以进行几次而无需重新装载催化剂和氟溶剂。