Allomucic acid

Alionge,/. adapter (Zinc) prolong flyleaf. AlioschleimsMure,/. allomucic acid, allotrop, a. allotropic. 

Allomucic acid, I, 37, 39 III, 49, 50, 58 D-Allonic acid, I, 38, 39 o-Allono-7-lactone, I, 38 Allonucleic acid, I, 196 a-D-AlIopyranoside, methyl 2,3-anhydro-... 

Recourse was then had to the direct oxidation of meso-inositol with alkaline potassium permanganate, and a hexaric acid was obtained which proved to be identical with allomucic acid prepared previously by Emil Fischer. Since the configuration assigned to this acid placed the four hydroxyl groups in a cis-cis-cis relationship, all the remaining configurations for meso-inositol save II are seen to be inapplicable. From the mother liquors of the oxidation mixture D,L-glucosaccharic acid was also isolated. This result, however, only showed that form IV was untenable. 

Fischer had, as he suspected, been mistaken as to the configuration of his allomucic acid. He had treated mucic acid with pyridine at an elevated temperature in the expectation that inversion would take place at both carbons two and five. However, when Posternak prepared... 

It was in 1910 that Levene and Jacobs first applied the classical cyanohydrin synthesis to o-ribose (I), a five carbon atom aldehyde sugar (aldopentose) which had become more readily available through their earlier research on nucleic acids. Two new aldohexoses were thus obtained in sirupy form, and characterized by suitable crystalline derivatives. To one of these sugars was given the name allose, with configuration V, because it should be oxidizable readily to allomucic acid (VIII). The latter is an optically inactive, dibasic acid, described by... 

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