While tin complexes form dimers with diols, the addition of TsCl likely induces a rearrangement into a new intermediate, which then reacts at O-2 (the most available and reactive oxygen). An equivalent of base is used to selectively deprotonate the alcohol and regenerate dibutyltin oxide for ...
glucose is oxidised to glutamate answer: (b) 3. the two hemiacetal isomers of glucose, 𝛼-d-glucose and 𝛽-d-glucose are (a) diastereomers (b) epimers (c) enantiomers (d) anomers answer: (d) 4. how many molecules of phenyl hydrazine react with glucose to produce glucosazone? (a)...
The preparation method is characterized in that water, chromium trioxide and pyridine react at a certain temperature, and are cooled, filtered and dried to obtain an oxidizing agent PDC (pyridinium dichromate); dichloromethane, the oxidizing agent PDC and acetic anhydride form a reaction system, a ...
An “activating group” is a chemical moiety or functional group that can, under appropriate conditions, react with a second chemical group thereby forming a covalent bond between the modifying agent and the second chemical group. For example, amine-reactive activating groups include electrophilic ...