Advertisements
Advertisements
प्रश्न
How will you prepare cinnamic acid from benzaldehyde?
Advertisements
उत्तर
Conversion of benzaldehyde into cinnamic acid:
\[\begin{array}{cc}
\phantom{....}\ce{COOH}\phantom{...............}\ce{COOH}\phantom{......}\\
\phantom{....}/\phantom{.....................}/\phantom{.............}\\
\ce{\underset{(Benzaldehyde)}{C6H5CH = O} + H2C ->[Pyridine][-H2O] C6H5CH = C ->[\Delta][-CO2] \underset{(Cinnamic acid)}{C6H5CH = CH} - COOH}\\
\phantom{....}\backslash\phantom{.....................}\backslash\phantom{.............}\\
\phantom{}\ce{\underset{(Malonic acid)}{COOH}}\phantom{.............}\ce{COOH}\phantom{....}
\end{array}\]
APPEARS IN
संबंधित प्रश्न
Benzaldehyde gives all tests positive EXCEPT ____________.
Identify the INCORRECT reaction.
Identify B in the following reaction,
\[\ce{Acetaldoxime ->[Na][alcohol] A ->[NaNO2][HCl] B + H2O + N2\uparrow}\]
Which of the following is Clemmensen reduction?
The formation of cyanohydrin from acetone is an example of ____________.
How is the following conversion effected phenyl methanal into benzoin?
Which of the following compounds will undergo self-aldol condensation in the presence of cold dilute alkali?
Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.
How will you prepare Acetic anhydride from acetic acid.
Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.
