A Water-Soluble Ruthenium Glycosylated Porphyrin Catalyst for Carbenoid Transfer Reactions in Aqueous Media with Applications in Bioconjugation Reactions
作者:Chi-Ming Ho、Jun-Long Zhang、Cong-Ying Zhou、On-Yee Chan、Jessie Jing Yan、Fu-Yi Zhang、Jie-Sheng Huang、Chi-Ming Che
DOI:10.1021/ja9077254
日期:2010.2.17
Water-soluble [Ru(II)(4-Glc-TPP)(CO)] (1, 4-Glc-TPP = meso-tetrakis(4-(beta-D-glucosyl)phenyl)porphyrinato dianion) is an active catalyst for the following carbenoid transfer reactions in aqueous media with good selectivities and up to 100% conversions: intermolecular cyclopropanation of styrenes (up to 76% yield), intramolecular cyclopropanation of an allylic diazoacetate (68% yield), intramolecular
水溶性 [Ru(II)(4-Glc-TPP)(CO)] (1, 4-Glc-TPP = meso-tetrakis(4-(beta-D-glucosyl)phenyl)porphyrinato dianion) 是一种活性催化剂用于水性介质中的以下类卡宾转移反应,具有良好的选择性和高达 100% 的转化率:苯乙烯的分子间环丙烷化(产率高达 76%)、烯丙基重氮乙酸酯的分子内环丙烷化(产率 68%)、分子内铵/锍叶立德的形成/ [2,3]-sigmatroptic 重排反应(产率高达 91%),以及分子间类卡宾插入芳基伯胺的 NH 键(产率高达 83%)。这种钌糖基化卟啉复合物可以选择性地催化肽的 N 端烷基化(8 个例子),并使用荧光连接的重氮化合物(15)介导蛋白质的 N 端修饰(4 个例子)。荧光基团通过 1 催化烯烃环丙烷化与 15 在水溶液中分两步结合到泛素上:(1)通过 N-羟基琥珀酰亚胺酯