Aldoses

As shown in Table 1, isomerases that are specific for 2R-aldoses were found to activate the 1-R proton of the ketose produced. ❋ Unknown (2005)

_ -- The _aldoses_ are fully esterified, in the pentoses 4 OH, in the hexoses 5 OH groups reacting. ❋ C. F. Cross (N/A)

Not only are the OH groups taking part in the latter consequently less by two than in the corresponding aldoses, but the nitrates show a much increased stability. ❋ C. F. Cross (N/A)

The molecular proportion of the aldoses affected appears to be in considerable excess, and the reaction is probably complicated by interior rearrangement. ❋ C. F. Cross (N/A)

CO group in both aldoses and hexoses, whence we may conclude that in the plant-cell the transition from dextrose to levulose is a very simple and often occurring process. ❋ C. F. Cross (N/A)

In the systematic investigation of the nitric esters of the carbohydrates (p. 41) Will and Lenze have definitely differentiated the ketoses from the aldoses, as showing an internal condensation accompanying the ester reaction. ❋ C. F. Cross (N/A)

Among various aldoses, the C. magnoliae JH110 ER showed high specific activity for reduction of erythrose to the corresponding alcohol, erythritol. ❋ Dae-Hee Lee (2010)

2S-aldoses produce ketoses that exchange their 1S proton11. ❋ Unknown (2005)

-- These are sharply differentiated from the corresponding aldoses by giving _tri_nitrates C_ {6} H_ {7} O_ {2} (NO_ {3}) _ {3} instead of _penta_nitrates, the remaining OH groups probably undergoing internal condensation. ❋ C. F. Cross (N/A)

C_ {6} H_ {12} O_ {6} - 4H_ {2} O + HBr = C_ {5} H_ {3} (CH_ {2} Br) O and generally the ketoses are distinguished from the aldoses by their susceptibility to condensation. ❋ C. F. Cross (N/A)

(p. 38) The authors have studied the nitric esters of a typical series of the now well-defined carbohydrates -- pentoses, hexoses, both aldoses and ketoses -- bioses and trioses, the nitrates being prepared under conditions designed to produce the highest degree of esterification. ❋ C. F. Cross (N/A)

Chim. 14, 156] upon the action of alkaline hydrates in aqueous solution on the hexoses have established the important fact of the resulting mobility of the CO group, and the interchangeable relationships of typical aldoses and ketoses. ❋ C. F. Cross (N/A)