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Questions
Write the reaction involved when D-glucose is treated with the following reagent:
(CH3CO)2O
Write the reaction when D-glucose reacts with the following:
Acetic anhydride
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Solution
\[\begin{array}{cc}
\phantom{.}\ce{CHO}\phantom{........................................}\ce{CHO}\phantom{...................}\\
|\phantom{...............................................}|\phantom{......................}\\
\phantom{.....................}\ce{(CHOH)4 + \underset{Acetic anhydride}{5(CH3CO)2O}->(CHOCOCH3)4 + 5CH3COOH}\\
|\phantom{...............................................}|\phantom{......................}\\
\phantom{...}\ce{\underset{\text{D-glucose}}{CH2OH}}\phantom{...................................}\ce{CH2O-C-CH3}\phantom{....}\\
\phantom{..................................................}||\\
\phantom{..................................................}\ce{\underset{\text{Glucose penta acetate}}{O}}
\end{array}\]
RELATED QUESTIONS
Maltose is a
(a) Polysaccharide
(b) Disaccharide
(c) Trisaccharide
(d) Monosaccharide
Write the product when D-glucose reacts with conc. HNO3.
Differentiable between the following:
Amylose and Amylopectin
Write the reaction involved when D-glucose is treated with the following reagent:
Br2 water
Write the reactions involved when D-glucose is treated with the following reagent:
H2N-OH
The number of asymmetric carbon atom(s) below the figure is/are
Oxime is formed by treating glucose with ____________.
Acetylation of glucose yields ____________.
Which is the least stable form of glucose?
In the following reaction, identify A and B:
\[\begin{array}{cc}
\ce{C6H12O6 ->[Acetic anhydride] A}\\
\downarrow \text{Conc. nitric acid}\phantom{...}\\
\ce{B}\phantom{.................}\end{array}\]
