(a)
Interpretation:
The conversion of benzoic acid to 3-methyl-1-phenyl-1-butanone by the help of a lithium diorganocopper reagent has to be shown.
Concept introduction:
Gilman reagent:
It is generally represented as
Reaction of Gilman reagent with acid chlorides:
(b)
Interpretation:
The conversion of benzoic acid to 3-methyl-1-phenyl-1-butanone by the help of a lithium diorganocopper reagent has to be shown.
Concept introduction:
When two molecules of an ester undergo condensation, then it is called claisen condensation. Like in aldol reaction, in claisen condensation one molecule is a nucleophile and the other molecule is an electrophile.
A claisen condensation reaction is a reversible reaction and occurs in the presence of a strong base.
The first step of claisen condensation is the removal of a proton from alpha carbon by a base and then the addition of enolate ion formed to the second ester molecule forming a β-ketoester.
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Chapter 19 Solutions
Organic Chemistry