Predict the product(s) of the following reactions:
(i) Nitration of azole
(ii) Friedel-Crafts acylation of pyridine
(iii) Reduction of pyrrole with zinc and ethanoic acid.
The nitration of 5.5 - azo - 1, 2, 4 - triazole by HNO3/Ac2O leads to 1.1- dinitro -3 . 3 - azo - 1, 2, 4 triazole; however, the rearrangement in C-nitro triazole has not happened
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Alkylation and nitration of
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Write chemical reactions for the following:
(i) Kolbe Schmidt reaction
(ii) Strecker synthesis
(iii) Dieckmann cobndensation
(iv) Knoevenagel reaction
(v) Perkin condensation
What are the limitations of Friedel-Crafts alkylation?
Arrange the following in the decreasing order of their basic strength:
alkanide anion; alkenide anion; alkynide anion
Justify your answer.
| Give reason for the following: |
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Match the following ions with their correct pKa values and give reasons for your answer:
Column I, Ion Column II, pKa
| What are racemic mixtures? How are they obtained? Discuss one method of their |
| resolution. |
Explain the following in one to two lines.
(i) Alkenes are more soluble in water than corresponding alkanes.
(ii) Addition reactions of alkenes are exothermic processes.
(iii) Hydroboration appear as anti-Markownikoff’s addition.