6-0-0-n-Galactose

Synthesis of Chromose A (2,6-Dideoxy-4 G-methyl-n-galactose), J. S. Brimacombe, D. Portsmouth, and M. Stacey, Chem. Ind. (London), (1964) 1758. 

A number of complexes of copper with 1,1-dithiolenes are known they are interesting, inasmuch as they form (1) polynuclear species, e.g., [Cu4(i-mnt)3]2 . Recently, a copper(III) complex of 1,1-dicarboeth-oxy-2-ethylenedithiolate (DED ) was prepared (375) by oxidation of aqueous solutions of K2[Cu(DED)2] with a 10-15% excess of Cu(II) or H202, and of (BzPh3P)2[Cu(DED)2] with I2. The possibility of this system as a model for the Cu "/Cu. system in n-galactose oxidase has been pointed out. Lewis and Miller (113) also prepared M[Cu(S2C CHN02)2] (M = Cu, or Zn) and Cu[Cu S2C C(CN)2 2], and found that they are effective insecticides. 

O Neill (30) has shown that carrageenan is a mixture of at least five different polysaccharides. The two main components are x-carrageenan, which consists of sulfated n-galactose and 3,6-anhydro-n-galactose residues in a 1.2 (or 1.4) to 1 ratio, and A-carrageenan, which is almost entirely made up of a-... 

Urine Freudenberg et al, (20) Levo 5 9.1 45.5 N-Acetyl-i>< ucoBanune, n Galactose... 

The novel type of disaccharide IX, consisting of a unit of n-galactose joined to a unit of L-arabinose, was obtained by autohydrolysis of gum arabic. The structure of this disaccharide was proved by the fact that methylation yielded the heptamethyl ether X and this gave on hydrolysis 2,3,4,6-tetramethyl-D-galactose (XI) and 2,4-dimethyl-L-arabinose (XII). 

Stercvlia plantanifolia (Young shoots) L-arabinose, n-galactose 74... 

Cress seed L-arabinose, n-galactose, L-rbam-nose, D-xylose (combined cellulose) D-galacturonic 93... 

Seaweed Extract Total N, % Galactose, % Ketose, % Sulfur (SOt), % Ash, %... 

Acetamido-2-deoxy-6-0-(a-n-galactopyranosyl)-n-galactose has been synthesized enzymically by transfer of the sugar moiety of phenyl a-D-galacto-side to 2-acetamido-2-deoxy-D-galactose.296 The evidence for the constitu-... 

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