Synthesis and antimalarial activity of new 1,2,4,5-tetroxanes and novel alkoxy-substituted 1,2,4,5-tetroxanes derived from primary gem-dihydroperoxides
摘要:
A convenient synthesis of new unsymmetrically substituted 1,2,4,5-tetroxanes and novel unsymmetrical alkoxy-substituted 1,2,4,5-tetroxanes starting from primary dihydroperoxides was developed. The structure of some tetroxanes was unambiguously assigned by X-ray crystal analysis giving interesting insights in the configuration and conformation of disubstituted 1,2,4,5-tetroxanes. Some of these tetroxanes showed notable antimalarial activity in vitro. (C) 2010 Elsevier Ltd. All rights reserved.
Aldehydes were efficiently converted directly into the corresponding gem-dihydroperoxides (DHPs) on treatment with aqueous 70% H2O2 in a biphasic system with ether catalyzed by camphorsulfonic acid. The synthesis represents the most versatile access to this class of compounds.
醛被有效直接转化为相应的宝石上治疗用含水70%H -dihydroperoxides吡啶类(DHP)2 Ô 2中的两相体系与由樟脑磺酸催化的醚。合成代表了此类化合物最通用的获取途径。
Synthesis and antimalarial activity of new 1,2,4,5-tetroxanes and novel alkoxy-substituted 1,2,4,5-tetroxanes derived from primary gem-dihydroperoxides
A convenient synthesis of new unsymmetrically substituted 1,2,4,5-tetroxanes and novel unsymmetrical alkoxy-substituted 1,2,4,5-tetroxanes starting from primary dihydroperoxides was developed. The structure of some tetroxanes was unambiguously assigned by X-ray crystal analysis giving interesting insights in the configuration and conformation of disubstituted 1,2,4,5-tetroxanes. Some of these tetroxanes showed notable antimalarial activity in vitro. (C) 2010 Elsevier Ltd. All rights reserved.
Reaction of Epoxyketones with Hydrogen Peroxide-Ethane-1,1-dihydroperoxide as a Surprisingly Stable Product