Victoria Dimakos, Jacklyn J. W. Liu, Zhenlu Ge and Mark S. Taylor
Org. Biomol. Chem., 2019,17, 5671-5674
DOI:
10.1039/C9OB01022J,
Communication
Copper-mediated couplings of arylboroxines with glycosyl hemiacetals furnish O-aryl glycosides via Csp2–O bond formation. The method enables the anomeric O-arylation of protected pyranose and furanose derivatives, and is tolerant of functionalized arylboroxine partners. Whereas mixtures of anomers are formed from glucopyranose, galactopyranose and arabinofuranose hemiacetals, the α-anomer is generated selectively from mannopyranose and mannofuranose-derived substrates.