Assertion: aldohexose's group | /r/MadeOf | mixture
Facets:
Source sentences:
text: The invention also includes a method for converting the 5-C-hydroxymethylated compounds formed above to their anhydro bicyclic form by (1) hydrolyzing the 5-C-hydroxymethylated product described above with from about 1 to about 10 molar equivalents of a mineral acid or strong organic acid selected from the group consisting of sulfuric acid, nitric acid, hydrochloric acid, perchloric acid, phosphoric acid, methanesulfonic acid, trifluoromethanesulfonic acid, or mixture thereof, at a temperature from about 20° C. to the boiling point; and (2) removing any residual acid from the reaction solution.
text: First, reacting under agitation and aeration and aqueous solution comprising from about 1% to about 50% D-aldohexose-based compound or a mixture of D-aldohexose-based and from about 1,000 to about 1,000,000 unit activity of the enzyme D-aldohexose:oxygen 6-oxidoreductase per mole of D-aldohexose-based compound at a temperature of from about 1° C. to about 50° C. Second, condensing the resulting oxidation product by reacting the solution with from about 1 to about 40 molar equivalents of formaldehyde and from about 1 to about 13 molar equivalents of a base selected from the group consisting of sodium hydroxide, calcium hydroxide, potassium hydroxide, and mixtures thereof, at a temperature of from about 15° C. to about 40° C. and at a pH of from about 12 to about 13.
text: The hydrolysis reaction is conducted by combining the 5-C-hydroxymethyl-D-aldohexose-based and a strong mineral acid or strong organic acid selected from the group consisting of sulfuric, hydrochloric, nitric, perchloric, and phosphoric acids, trifluoromethanesulfonic acid, methanesulfonic acid, and mixtures thereof (preferably sulfuric acid), at a molar ratio of from about 1:1 to about 1:10 (sugar:acid).