On October 2, 2020, Singh, Adesh Kumar; Kanaujiya, Vimlesh Kumar; Tiwari, Varsha; Sabiah, Shahulhameed; Kandasamy, Jeyakumar published an article.COA of Formula: C12H16O7 The title of the article was Development of Routes for the Stereoselective Preparation of β-Aryl-C-glycosides via C-1 Aryl Enones. And the article contained the following:
A wide range of enones derived from D-glucal, D-galactal, L-rhamnal, D-rhamnal, and L-arabinal underwent Heck-coupling with various arylboronic acids bearing electron-donating and -withdrawing groups in the presence of palladium acetate and 1,10-phenanthroline. These reactions provided synthetically useful C-1 aryl enones in good yields. Many sensitive functional groups as well as protecting groups present in arylboronic acids and enones, resp., remained intact under optimized conditions. The stereoselective hydrogenation of C-1 aryl enones with Pd-C/H2 provides the β-isomer of 2-deoxy-aryl-C-glycosides in excellent yield. The C-1 aryl enones were also used as precursors for the synthesis of 2-hydroxy-β-aryl-C-glycosides. Regioselective C-2 halogenation and vinylation of C-1 aryl enones were achieved in excellent yields. The experimental process involved the reaction of (2R,3S,4R)-2-(Acetoxymethyl)-3,4-dihydro-2H-pyran-3,4-diyl diacetate(cas: 2873-29-2).COA of Formula: C12H16O7
The Article related to protecting group arylboronic acid stereoselective hydrogenation halogenation vinylation glycal, arylglycoside stereoselective arylboronic acid heck coupling phenanthroline palladium catalyst and other aspects.COA of Formula: C12H16O7
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