Taloses

Once the eight Fischer projections have been written they are named m order with the aid of the sentence All altruists gladly make gum m gallon tanks The words of the sentence stand for allose altrose glucose mannose gulose idose galactose talose... 

D-Allose D-Altrose D-Glucose -Mannose D-Gulose D-ldose -Galactose D-Talose... 

The aldohexoses are allose, altrose, glucose, mannose, gulose, idose, galactose, and talose. The mnemonic All altruists gladly make gum in gallon tanks is helpful in writing the conect Fischer projection for each one. 

By the use of nuclear magnetic double (and triple) resonance, the configuration (34) of pseudo-talose was established, confirming chemical evidence, and the sidechain-equatorial conformation (38) was also... 

Look up the structure of D-talose in Figure 25.3, and draw the fi anomer in its pyranose form. Identify the ring substituents as axial or equatorial. 

What other d aldohexose gives the same alditol as D-talose ... 

Table sugar, sec Sucrose Tagatose, structure of, 975 Talose. configuration of, 982 Tamiflu, molecular model of, 130 Tamoxifen, synthesis of, 744 Till] DNA polymerase, PCR and, 1117 Tartaric acid, stereoisomers of, 305-306... 

Die Reduktion der y-Lactone von On-sauren verschiedener Monosaccharide zu den entsprechenden Monosacchariden wird in einer geteilten Zelle an einer Quecksilber-Kathode undBlei- bzw. Platin-Anode in schwach saurem, waBrigen Milieu (Borat-Puffer) ausgefiihrt. Auf diese Weise sind d-Arabinose, n-Mannose, d-Talose, d-Ribose u. a. mit guter Ausbeute zuganglich1-4. 

Mannit 745 D- I-,4C- 224 3,4-Desoxy-D- 1,2 5,6-Bis-0-[isopropyliden]-3,4-dimercapto- 342 I,2 5,6-Bis-0-[isopropyliden]-3,4-trithiocar-bonato- 342 Sorburonsiiure l- -Calcium-Salz 317 T D-Talose 602... 

The Action of Alkaline Reagents on 2 3-1 6- and 3 4-l 6-Dianhydro-3-talose. A Constitutional Synthesis of Chondrosamine and other Amino-Sugar Derivatives, S. P. James, F. Smith, M. Stacey, and L. F. Wiggins, J. Chem. Soc., (1946) 625-628. 

Deoxy-L-galactose (L-fucose) is common, and has only been found as the a- or )3-pyranoside. The rare D-fucose has, however, been found both as a-pyranoside, in the LPS frorn Pseudomonas cepacia serotypes B and E, and as a-furanoside, in the cell-wall antigen from Eubacterium saburreum L 452 and the O-antigens from different strains of Psuedomonas syrin-gae The a-furanoside, as in 3, has a cis relationship between the aglycon and OH-2. The corresponding P form has not yet been found. 6-Deoxy-o-and -L-talose are components of the extracellular polysaccharides from some strains of Butyrivibrio fibrisolvens and of the LPS from some strains of E. coli respectively. 

C13-0064. The six-carbon sugar talose differs from glucose in the orientations of the hydroxyl groups at the 2 and 4 positions. Draw the structure of a-talose. 

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