Give examples of alkoxysubstituted LAH reducing agents. Compare their selectivity with LAH.
See Answer →Explain giving suitable reactions the reduction of benzene using sodium is liquid ammonia.
See Answer →Explain Negishi coupling reaction with an example and give its mechanism.
See Answer →Discuss the disconnections for the synthesis of benzocaine.
See Answer →Explain the synthesis of azepine using ethoxycarbonyl nitrene.
See Answer →Draw the taustomeric forms of azepines and compare their stabilities.
See Answer →Discuss the Skraup synthesis of quinoline giving the reactions involved.
See Answer →How can benzotriazole be synthesised starting from ortho-phenylenediamine? Give the mechanism of the reaction.
See Answer →Discuss Bischer synthesis of indole. How can you obtain a single product in this reaction?
See Answer →Illustrate giving two [3+2] cycloaddition reactions how can 1,3-dipolar compounds react with alkenes and alkynes to give pyrazoles.
See Answer →With suitable examples, discuss the control of enantioselectivity in alkylation reactions.
See Answer →Write the advantages and disadvantages of chiron approach.
See Answer →Discuss the role of phase transfer catalysts in nucleophilic substitution reactions.
See Answer →What are homoenolates? Write the methods of their preparation.
See Answer →Write various factors which control the formation of enolates.
See Answer →Discuss the oxidation of monoalkylacetylenes using thalium nitrate. Also give the mechanism of the reaction.
See Answer →Give examples of alkoxysubstituted LAH reducing agents. Compare their selectivity with LAH.
See Answer →Explain giving suitable reactions the reduction of benzene using sodium is liquid ammonia.
See Answer →Give the products of the reaction of azetedine with the following reagents:
(i) RCOCI
(ii) CS2
(iii) HNO2
(iv) HCHO
(v) HCl/
See Answer →Discuss how can tetraalkylaziridines be synthesised.
See Answer →