Assertion: aldohexose's group | /r/MadeOf | phosphoric acid
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.