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Magazine Chapter 20: Q19 Pb (page 1066)
Show how you would synthesize the following compounds from the appropriate carboxylic acids or acid derivatives.
a)
b)
c)
Short Answer
a)
b)
c)
Step by step solution
Carboxylic acids or acid derivatives
Carboxylic acids are the COOH- containing compounds, and acid derivatives are the compounds formed when the OH group of a carboxylic acid is replaced by Cl (acid chloride) or - NH2(amide). There are three types of acid derivatives: acid halides, esters, and amides.
Synthesis of phenylacetic acid
(a) Isopropyl alcohol is synthesized when phenylacetic acid is treated with LiAlH4 and further with H3O+. Another method is by treating phenylacetic acid with B2H6 and then with H3O+.
Synthesis of phenylacetic acid
Synthesis of phenylacetaldehyde
Phenylacetaldehyde is synthesized when phenylacetyl chloride is treated with LiAIH(O - t - Bu)3and further with H3O+ .
Formation of phenylacetaldehyde
Synthesis of phenylacetaldehyde
Synthesis of compounds
The COOH group of a reactant is converted to CH2OH-when the reactant is treated with B2H6 and further with H3O+ .
Formation of compounds
Synthesis of alcoholic compounds
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