We report the denovo asymmetric synthesis of the 3,6-dideoxy sugars abequose, paratose, and tyvelose from 2-acetylfuran. Conversion of this readily available ketone to a pyranone derivative was followed by transformation to either an α- or β-glycoside via diasteroselective acylation. Michael addition at C2 controlled primarily by the C1 configuration in the glycoside produced 3,6-dideoxy-4-keto sugars
All-in-One Synthesis of 3,6-Dideoxysugars: An Olefin Metathesis–Isomerization Approach
作者:Hongwei Chen、Zuming Lin、Yuan Meng、Jian Li、Sha-Hua Huang、Ran Hong
DOI:10.1021/acs.orglett.3c02449
日期:2023.9.1
known congeners, has been reported using commercially available methyl lactates in five steps. The essential tandem process involving the olefin cross-metathesis and isomerization steps was enabled by the dualfunction of Grubbs-II catalyst, affording the products in good yields and providing concise and practical access to a class of biologically important deoxysugars.