55628-54-1Relevant articles and documents
Synthesis of 2-iodoglycals, glycals, and 1,1′-disaccharides from 2-deoxy-2-iodopyranoses under dehydrative glycosylation conditions
Rodriguez, Miguel Angel,Boutureira, Omar,Matheu, M. Isabel,Diaz, Yolanda,Castillon, Sergio,Seeberger, Peter H.
, p. 8998 - 9001 (2007)
(Chemical Equation Presented) Treatment of 2-deoxy-2-iodopyranoses under dehydrative glycosylation conditions afforded pyranose glycals, 2-iodoglycals, and 1,1′-disaccharides instead of the expected glycoside products. While the product distribution revea
Ir(I)-Catalyzed C?H Glycosylation for Synthesis of 2-Indolyl-C-Deoxyglycosides
Yu, Changyue,Liu, Yichu,Xie, Xiong,Hu, Shulei,Zhang, Shurui,Zeng, Mingjie,Zhang, Dan,Wang, Jiang,Liu, Hong
supporting information, p. 4926 - 4931 (2021/09/09)
The construction of 2-deoxy-C-glycosides has gradually become a hotspot of carbohydrate chemistry in recent years. In this work, we present an efficient, regioselective, stereoselective and widely applicable strategy for the synthesis of 2-indolyl-C-deoxyglycosides via Ir(I)-catalyzed, pyridine-group-directed C?H functionalization. This method exhibits high tolerance for the functional groups of indoles and the protecting groups of carbohydrates. Moreover, this protocol has good stereoselectivity and mainly produces β-configuration products. Gram-scale synthesis and several practical transformations were conducted for further applications. Meantime, we also explored the mechanism of this method and proposed a catalytic cycle. (Figure presented.).
Azomethine ylide cycloaddition of 2-C-formyl glycals with α-amino acids for the synthesis of substituted pyrroles
Reddy, V. Veerabadhra,Reddy, B.V. Subba
, (2021/09/03)
A novel strategy has been devised for the synthesis of pyrrole based acyclo-C-nucleosides, in particular an open-chain sugar substituted pyrrole derivatives by means of the condensation of 2-C-formyl glycals with α-amino acids through an intramolecular azomethine cycloaddition under thermal conditions. The use of cyclic α-amino acids provides the corresponding bicyclic pyrrole derivatives. This is a first report on the synthesis of pyrrole based acyclo-C-nucleosides. 2009 Elsevier Ltd. All rights reserved.