Match the compounds given in list I with list II and select the suitable option using the code given bellows. [AIPMT (M) 2011] | ||||
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A) A-4, B-1, C-3, D-2
B) A-4, B-2, C-3, D-1
C) A-2, B-3, C-4, D-1
D) A-2, B-1, C-4, D-3
Correct Answer: D
Solution :
[d] [A] Benzoin condensation. When an ethanolic solution of benzaldehyde is heated with strong alkali like KCN or NaCN, we get benzoin. |
\[\text{2}{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}-\overset{\begin{smallmatrix} \text{O} \\ \text{ }\!\!|\!\!\text{ }\!\!|\!\!\text{ } \end{smallmatrix}}{\mathop{\text{C}}}\,-\text{H}\xrightarrow[{}]{\text{C}{{\text{N}}^{\text{ }\!\!\Theta\!\!\text{ }}}}{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}\overset{\begin{smallmatrix} \text{O} \\ \text{ }\!\!|\!\!\text{ }\!\!|\!\!\text{ } \end{smallmatrix}}{\mathop{\text{C}}}\,-\underset{\text{benzoin}}{\mathop{\underset{\begin{smallmatrix} \text{ }\!\!|\!\!\text{ } \\ \text{OH} \end{smallmatrix}}{\mathop{\text{CH}}}\,}}\,-{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{5}}}\] |
[B] Formation of phenolphthalein. When phenol is treated with phthalic anhydride in the presence of concentrated \[{{\text{H}}_{\text{2}}}\text{S}{{\text{O}}_{\text{4}}}\text{,}\]it gives phenolphthalein, an indicator. |
[C] Fries rearrangement Phenyl benzoate when heated with anhydrous \[AlC{{l}_{3}}\] in the presence of inert solvent gives ortho-and para-hydroxybenzophenone. In this rearrangement, there is a benzoyl group migration from the phenolic oxygen to an ortho-and para-position. |
(A chief constituent of oil of wintergreen) |
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