Question

How the following compounds can be obtained from
(i) 2, 4, 6-Tribromophenol
(6
(ii) Benzene
9 विलियमसन की अविरल ईथरीकरण विधि क्या है? क्या यह अविर
दीजिए।
What is Williamson's continuous etherification pr
continuous process? Give reasons.
• यूरोट्रोपिन क्या है ? इसका संरचना सूत्र एवं उपयोग लिखिए।​

Answer 1

Answer:

Answer

(i) 2,4,6−Trinitrophenol:

Phenol on nitration with nitrating mixture (HNO

3

/H

2

SO

4

) gives 2,4,6−Trinitrophenol which is also called picricacid.

(ii) 2,4,6−Tribromophenol:

Phenol on treatment with brominewater gives precipitate of 2,4,6−Tribromophenol.

(iii) Benzene:

When phenol is heated with zincdust it gives benzene.

(iv) OrthoandPara−Cresol:

When Phenol is treated with CH

3

−Cl/AlCl

3

, it undergoes Friedel Craft's alkylation to form a mixture of orthoandpara−cresol

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Answer 2

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