Reaction of Furan and Thiophene
Reaction of Furan and Thiophene
Reaction of Furan and Thiophene
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Electrophilic Aromatic substitution <strong>Reaction</strong>s<br />
1) Nitration<br />
O<br />
CH 3 COONO 2<br />
Pyridine<br />
O<br />
NO 2<br />
S<br />
CH 3 COONO 2<br />
AcOH / Ac 2 O<br />
2) Sulphonation<br />
S<br />
NO 2<br />
O<br />
N<br />
SO 3<br />
SO 3 / Pyridine complex<br />
HO 3 S<br />
O<br />
SO 3 H<br />
S<br />
95 % H 2 SO 4<br />
S<br />
SO 3 H<br />
Heterocyclic Chemistry