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An organic compound (A) reacts with HCN to give (B) . On hydrolysis of (B) in acidic medium gives (C) . Compound (A) also produces propane when treated with zinc - amalgam and HCI. Identify (A) (B) and © with reaction and gives their in IUPAC names. What product would you expect when (A) is treated with trichloromenthane in alkaline medium.
Answers
Answer:
(B) and © with reaction and gives their in IUPACn
Answer:
The reaction of aldehydes and ketones with zinc amalgam (Zn/Hg alloy) in concentrated hydrochloric acid, which reduces the aldehyde or ketone to a hydrocarbon, is called Clemmensen reduction.
Introduction
This alternative reduction involves heating a carbonyl compound with finely divided, amalgamated zinc in a hydroxylic solvent (often an aqueous mixture) containing a mineral acid such as HCl. The mercury alloyed with the zinc does not participate in the reaction, it serves only to provide a clean active metal surface.
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Example
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Possible mechanism
The mechanism of Clemmensen reduction is not fully understood; intermediacy of radicals are implicated. Clemmensen reduction is complementary to Wolff-Kishner reduction, which also converts aldehydes and ketones to hydrocarbons, in that the former is carried out in strongly acidic conditions and the latter in strongly basic conditions.