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Chemistry
CH3COOC2H5 with excess of C2H5MgBr and hydrolysis gives
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Q. $ C{{H}_{3}}COO{{C}_{2}}{{H}_{5}} $ with excess of $ {{C}_{2}}{{H}_{5}}MgBr $ and hydrolysis gives
MGIMS Wardha
MGIMS Wardha 2010
A
$ C{{H}_{3}}-\underset{\begin{smallmatrix} | \\ {{C}_{2}}{{H}_{5}} \end{smallmatrix}}{\mathop{C}}\,=O $
B
$ C{{H}_{3}}-\underset{\begin{smallmatrix} | \\ {{C}_{2}}{{H}_{5}} \end{smallmatrix}}{\overset{\begin{smallmatrix} {{C}_{2}}{{H}_{5}} \\ | \end{smallmatrix}}{\mathop{C}}}\,-OH $
C
$ C{{H}_{3}}-\underset{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}{\mathop{C}}\,= $
D
$ C{{H}_{3}}-\underset{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}{\overset{\begin{smallmatrix} {{C}_{2}}{{H}_{5}} \\ | \end{smallmatrix}}{\mathop{C}}}\,-OH $
Solution:
$ C{{H}_{3}}-\overset{\begin{smallmatrix} O \\ |\,| \end{smallmatrix}}{\mathop{C}}\,-O-{{C}_{2}}{{H}_{5}}+\underset{(excess)}{\mathop{{{C}_{2}}{{H}_{5}}MgBr}}\,\xrightarrow{{}} $ $ C{{H}_{3}}-\underset{\begin{smallmatrix} | \\ {{C}_{2}}{{H}_{5}} \end{smallmatrix}}{\overset{\begin{smallmatrix} {{C}_{2}}{{H}_{5}} \\ | \end{smallmatrix}}{\mathop{C}}}\,-OH $ When esters react with excess of Grignard reagent, $ 3{}^\circ $ alcohol is formed.