(a)
Interpretation:
The mechanism for Step 1 is to be proposed.
(b)
Interpretation:
The aromaticity of pyrazole compound has to be shown.
Concept introduction:
Aromaticity:
The organic molecule must planar, cyclic and conjugate and satisfy the 4n+2 electrons is called
(c)
Interpretation:
The reagent has to be shown for step 2-7 and 9
Concept Introduction:
Reduction: nitro group undergoing reduction by using reducing agent like metals like Ni or Pt with hydrogen which provides
Nitration: The formation of nitro group in a
(d)
Interpretation:
The synthesis of step 6 reagent has to be shown.
Concept introduction:
Acyl chloride:
(e)
Interpretation:
The mechanism for the chlorosulfonation is to be proposed.
(f)
Interpretation:
The synthesis and structural formula for the step 9 has to be proposed.
(h)
Interpretation:
The possible stereoisomer’s has to be shown if the product is chiral.
Concept introduction:
Isomer: A molecule having the same molecular formula but with different chemical structure is called isomer.
Enantiomers: A compound which is non-superimposable mirror image is called enantiomers.
Diastereomers: A compound which is non-superimposable and non-mirror image is called diastereomers.
Racemic mixture: A racemic mixture is simply a mixture containing an equal amount of each enantiomer.
Achiral:
A molecule is superimposable on its mirror image is called achiral molecule.
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