title: α-Selective organocatalytic synthesis of 2-deoxygalactosides.
abstract: Alpha rules: A thiourea acts as an efficient organocatalyst for the glycosylation of protected galactals to form oligosaccharides containing a 2-deoxymonosaccharide moiety. The reaction is highly stereoselective for α-linkages and proceeds by way of a syn-addition mechanism.
authors.affiliation: School of Chemistry, University of Bristol, Cantock's Close, Bristol, UK.
authors.forename: Edward I
authors.initials: EI
authors.lastname: Balmond
authors.forename: Diane M
authors.initials: DM
authors.lastname: Coe
authors.forename: M Carmen
authors.initials: MC
authors.lastname: Galan
authors.forename: Eoghan M
authors.initials: EM
authors.lastname: McGarrigle
mesh_terms: D000080:Acetals / Q000737:chemistry; D002384:Catalysis; D005697:Galactosides / Q000138:chemical synthesis / Q000737:chemistry*; D006031:Glycosylation; D013237:Stereoisomerism; D013890:Thiourea / Q000737:chemistry*
chemical_list: D000080:Acetals; D005697:Galactosides; D013890:Thiourea