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How will you convert benzaldehyde into the following compounds? (i) benzophenone (ii) benzoic acid (iii) 2-hydroxyphenylaceticacid. |
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Answer» Solution :`{:(underset(("Benzaldehyde"))(C_(6)H_(5)CHO) underset((O))overset(OH^(ө)//KMnO_(4))RARR underset(("Benzoic acid"))(C_(6)H_(5)COOH)),(""darr underset(Delta)(NaOH//CaO)),(underset(("Benzophenone"))(HCl + C_(6)H_(5) - COC_(6)H_(5)) underset(underset("Benzoylation")("Anhydrous" AlCl_(3)))overset(C_(6)H_(5)COCl)rarr underset(("Benzene"))(C_(6)H_(6))):}` (ii) Conversion of benzaldehyde into benzoic acid: `underset(("Benzaldehyde"))(C_(6)H_(5)CHO) underset((O))overset(OH^(ө)//KMnO_(4))rarr underset(("Benzoic acid"))(C_(6)H_(5)COOH)` (iii) conversion of benzaldehyde into 2-hydroxy phenyl ACETIC acid: `underset(("Benzaldehyde"))(C_(6)H_(5)CHO) overset(HCN)rarr underset(("Phenyl Cyanohydrin"))(C_(6)H_(5) - underset(underset(OH)(|))overset(overset(H)(|))(C) - CN) underset("excess")overset(H^(+)//H_(2)O)rarr underset(("2-hydroxy phenyl acetic acid"))(C_(6)H_(5) - underset(underset(OH)(|))overset(overset(H)(|))(C) - COOH)` |
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