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Hydrolysis of Amides

Which of the ...

Question

Which of the statements is/are correct?

In Reformatsky reaction,

α -

bromo ester reacts with aldehyde or ketone in the presence of

M g

to give

β

-hydroxy ester

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In Reformatsky reaction,

α -

bromo ester reacts with aldehyde or ketone in the presence of

Z n

to give

β -

hydroxy ester

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Citric acid is prepared by the reaction of

α

-bromoethyl oxaloacetate in the presence of

Z n

followed by hydrolysis

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Citric acid is prepared by the fermentation of molasses in the presence of Aspergillus wenti enzymes

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Solution

The correct options are
B In Reformatsky reaction, $α -$ bromo ester reacts with aldehyde or ketone in the presence of $Z n$ to give $β -$ hydroxy ester
C Citric acid is prepared by the reaction of $α$ -bromoethyl oxaloacetate in the presence of $Z n$ followed by hydrolysis
D Citric acid is prepared by the fermentation of molasses in the presence of Aspergillus wenti enzymes

The statement A is incorrect and the statements B, C and D are correct.

In Reformatsky reaction, α−bromo ester reacts with aldehyde or ketone in the presence of Zn (and not Mg) to give β−hydroxy ester.

$B r C H_{2} C O O C H_{3} + C H_{3} C H O Z n - \to C H_{3} (H O) C H_{2} C O O C H_{3}$

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