Question 15.73: What carbonyl compound and Grignard reagent are required to ......
What carbonyl compound and Grignard reagent are required to produce each of the following compound?
Step-by-Step
There are three possible combinations of Grignard reagent and a carbonyl compound.
(1) Prepare the Grignard reagent of an ethynyl group by reacting acetylene with a Grignard reagent such as methyl magnesium bromide. Then react it with 2-butanone, followed by hydrolysis.
(2) Prepare the Grignard reagent of iodoethane and react with it with S butyn-2-one, followed by hydrolysis.
(3) Prepare the Grignard reagent of iodomethane and react with it with l pentyn-3-one, followed by hydrolysis.
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