Altritol, 1,5-anhydro

C44H4q08 h2o 2,5-Anhydro-l,6-di-0-(triphenylmethyl)-DL-altritol, monohydrate TRANAL 43 334... 

DL-galactonic acid (39). 1,4-Anhydro-DL-talitol (3,6-anhydro-DL-altritol) (40) gave 2-0-(carboxymethyl)-DL-threaric acid (41) and 1,4-anhydro-D-mannitol (42) gave 2-0-(carboxymethyl)erythraric acid (43). 

The gas —liquid chromatographic re-run of zone A at 180° (see Fig. 10) indicated the presence of two zones, in almost equal proportions, which were presumed to be tetra-0-acetyl-l,5-anhydro-3-deoxy-3-C-(hydroxymethyl)-D-glucitol and -D-altritol, although no definite synthetic evidence has thus far been presented in support of this supposition. 

Altritol, tetra O-acetyl-1,5-anhydro-3-de-oxy-3-C-(hydroxymethyl)-D-, 98 Altropyranoside, methyl 4-0-benzoyl-6-bromo-2,6-dideoxy-2-(p-tolylsulfona-mido)-3-0-p-tolylsulfonyl-a-D-, 267 —, methyl 4,6-O-benzylidene-a-D-, 107 2,3-dinitrate, denitration of, 266 —, methyl 4,6-0-benzylidene-2-0-(meth-ylsulfonyl)-a-D-, 3-nitrate, infrared spectrum, 256... 

A new synthesis of 2,5-anhydro-D-altritol (25) and the first synthesis of 2,5-anhydro-D-idltol (26) have been reported, both from 2,5-anhydro-D-mannltol (27), by conventional routes outlined in Scheme 9... 

Acetamido-3,4-di-0-acetyI-5-deoxy-p-D-ribopyranose, A-332 5-Acetamido-5,6-dideoxy-l,2-0-isopropylidene-p-L-talofuranose, A-418 5-Acetamido-5,6-dideoxy-L-taIofuranose, A-418 5-Acetamido-1,2.3,4-tetra-0-acetyI-5-deoxy-a-D-lyxopyranose, A-299 2-Acetamido-1,3,4,5-tetra-0-acetyI-2,6-dideoxy-D-altritol, A-367 5-Acetamido-2,3,4-tri-0-acetyI-l,6-anhydro-5-deoxy-p-L-idopyranose, A-293... 

Acetamido-2,3,4,6-tetra-0-acetyl-l,5-dideoxy-L-altritol, A-368 2-Acetamido-3,4,6-tri-0-acetyl-l,5-anhydro-2-deoxy-D-talitol, A-144 2-Amino-l,5-anhydro-2-deoxyallitol u-form, A-123 l-Amino-2,5-anh.ydro-l-deoxyarabinitol u-form, A-125... 

Anhydro-l-deoxy-l-nitro-D-altritol and D-allitol derivatives, prepared by cyclization of corresponding 1-deoxy-l-nitro-D-altritol or D-allitol derivatives in dimethyl sulphoxide, undergo equilibration on heating in aqueous solvents via acyclic nitroalkene intermediates whereas the altro isomer (18) predominated with 3,4-O-isopropylidene derivatives, the alio isomer (19) was preferred for the monocyclic derivative. ... 

Alditols. - 3,6-Anhydro-l-bromo-l-deoxy-DL-galactitol, 1,5-anhydro-DL-galactitol, 2,5-anhydro-l,6-di-O-trityl-DL-altritol, and 2,6-anhydro-1,5-di-O-trityl-DL-galactitol.72 x,2 5,6-Di-anhydrogalac-titol and its 3,4-diacetate.73... 

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