Recognition and Site-Selective Transformation of Monosaccharides by Using Copper(II) Catalysis
作者:I-Hon Chen、Kevin G. M. Kou、Diane N. Le、Colin M. Rathbun、Vy M. Dong
DOI:10.1002/chem.201400133
日期:2014.4.22
We demonstrate copper(II)‐catalyzed acylation and tosylation of monosaccharides. Various carbohydrate derivatives, including glucopyranosides and ribofuranosides, are obtained in high yields and regioselectivities. Using this versatile strategy, the site of acylation can be switched by choice of ligand. Preliminary mechanistic studies support nucleophilic addition of a copper–sugar complex to the acyl
我们证明了
铜(II)催化的
单糖酰化和甲
苯磺酸化。以高收率和区域选择性获得了各种
碳水化合物衍
生物,包括
吡喃
葡萄糖苷和核
呋喃糖苷。使用这种通用策略,可以通过选择
配体来切换酰化位点。初步的机理研究支持将
铜糖复合物亲核加到酰
氯中是限制营业额的。