Synthesis of d-glyco-alkynone derivatives via carbonylative Sonogashira reaction

A carbonylative Sonogashira coupling approach to the synthesis of glyco-alkynones is described. Eighteen examples were obtained in moderate do nearly quantitative yields under mild conditions employing Mo(CO)6 as a safe carbon monoxide source. Functionalization of the alkynyl moiety via cycloaddition with organic azides provided six examples of glyco-triazoles.
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Darbem MP., Esteves C.HA., Oliveira IM., Reis JS., Pimenta DC, Stefani HA.. Synthesis of d-glyco-alkynone derivatives via carbonylative Sonogashira reaction. RSC Adv. 2019 Mar;9(17).9468-9474. doi:10.1039/c9ra00523d.
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