State what alkene or alkyne (with only carbons and hydrogens) and what other reactants you should use to most effectively synthesize the following in the fewest number of steps and with the highest yield. H;C-CH,- C CH3

Organic Chemistry: A Guided Inquiry
2nd Edition
ISBN:9780618974122
Author:Andrei Straumanis
Publisher:Andrei Straumanis
Chapter12: Chirality
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State what alkene or alkyne (with only carbons and hydrogens) and what
other reactants you should use to most effectively synthesize the following in the fewest
number of
steps
and with the highest yield.
H;C-CH,-
C
CH3
Transcribed Image Text:State what alkene or alkyne (with only carbons and hydrogens) and what other reactants you should use to most effectively synthesize the following in the fewest number of steps and with the highest yield. H;C-CH,- C CH3
Expert Solution
Step 1

For the synthesis of butanone ( 2- Butanone) , first of all we take ethyne molecule and reacts it with acid and mercuric sulphate, it gives acetaldehyde. When acetaldehyde treated with ethyl magnesium Bromide ( Grignard reagent) then an intermediate compound is formed which on acidic hydrolysis gives 2- butanol alcohol, this alcohol when oxidised by suitable oxidising agent (like potassium dichromate),it gives 2- Butanone ad final product.

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