Advertisements
Advertisements
प्रश्न
Predict the reagent for carrying out the following transformations:
Benzoyl chloride to Benzaldehyde
Advertisements
उत्तर
Rosenmund Reduction in presence of Lindlar's Catalyst (H2/Pd-BaSO4).
APPEARS IN
संबंधित प्रश्न
Write the reaction involved in the Stephen reduction
When 0.4 g of acetic acid is dissolved in 40 g of benzene, the freezing point of the solution is lowered by 0.45 K. Calculate the degree of association of acetic acid. Acetic acid forms dimer when dissolved in benzene.
(Kf for benzene = 5.12 K kg mol−1, at. wt. C = 12, H = 1, O = 16)
Aldehydes are produced on reduction of the following by DIBAL-H:
The oxidation of toluene to benzoic acid can be stopped at the aldehyde stage to give benzaldehyde. The reagent used for the purpose is one of the following.
The number of chiral carbon in glucose is:-
Aldehydes are the first oxidation products of ______.
The reagent in friedel - craft reaction is:
The intermediate compound ‘X’ in the following chemical reaction is:
Explain the following reactions:
Stephan reaction
An organic compound with molecular formula \[\ce{C7H7NO2}\] exists in three isomeric forms, the isomer ‘A’ has the highest melting point of the three. ‘A’ on reduction gives compound ‘B’ with molecular formula \[\ce{C7H9N}\]. ‘B’ on treatment with \[\ce{NaNO2/HCl}\] at 0-5° C to form compound ‘C’. On treating C with \[\ce{H3PO2}\], it gets converted to D with formula \[\ce{C7H8}\], which on further reaction with \[\ce{CrO2Cl2}\] followed by hydrolysis forms ‘E’ \[\ce{C7H6O}\]. Write the structure of compounds A to E. Write the chemical equations involved.
