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Unsaturated sugars. I. Decarboxylative elimination of methyl 2,3-di-O-benzyl-alpha-D-glucopyranosiduronic acid to methyl 2,3-di-O-benzyl-4-deoxy-beta-L-threo-pent-4-enopyranoside. 1973

E D Philips, and J Zemlicka, and J P Horwitz

UI MeSH Term Description Entries
D010429 Pentoses Monosaccharide sugar molecules that contain a five carbon backbone. Pentose,Ketopentose,Ketopentoses
D003653 Decarboxylation The removal of a carboxyl group, usually in the form of carbon dioxide, from a chemical compound. Decarboxylations
D003837 Deoxy Sugars Sugars that in which one or more hydroxyl groups of the pyranose or furanose ring is substituted by hydrogen. Deoxy Sugar,Sugar, Deoxy,Sugars, Deoxy
D004126 Dimethylformamide A formamide in which the amino hydrogens are replaced by methyl groups. N,N-Dimethylformamide,N,N Dimethylformamide
D005965 Glucuronates Derivatives of GLUCURONIC ACID. Included under this heading are a broad variety of acid forms, salts, esters, and amides that include the 6-carboxy glucose structure. Glucosiduronates,Glucuronic Acids,Acids, Glucuronic
D006865 Hydrogenation Addition of hydrogen to a compound, especially to an unsaturated fat or fatty acid. (From Stedman, 26th ed) Hydrogenations
D000080 Acetals Diethers with the structure -C(OR'')(OR'''), where R'' and R''' are not hydrogen. Mixed acetals have R'' and R''' groups which differ. Acetal
D001593 Benzyl Compounds Benzene derivatives that contain a benzyl group with the general formula Phenyl-CH2-R. Compounds, Benzyl

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Extension of sugar chains by enolate addition to methyl 2,3-di-O-acetyl-4-deoxy- -L-threo-hex-4-enodialdo-1,5-pyranoside.
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