The structure of the product, dibenzo-18-crown-6 and the mechanism for the given reaction are to be provided. Concept introduction: Ethers are organic compounds in which an oxygen atom is attached to two alkyl or two aryl groups. These compounds are similar in structure to alcohols and phenols. Crown ethers are large cyclic compounds, which consist of a ring containing several ether groups. A class of organic compounds whose molecule are large rings containing a number of ether linkages. These ethers are called crown ether due to their shape. They have − OCH 2 CH 2 − repeating units. The name 18 -crown- 6 indicates that there are 18 atoms in the ring, 6 of which are oxygen. They trapped metal ion into their cavity.

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Chapter 21, Problem 23P

Interpretation Introduction

Interpretation:

The structure of the product, dibenzo-18-crown-6 and the mechanism for the given reaction are to be provided.

Concept introduction:

Ethers are organic compounds in which an oxygen atom is attached to two alkyl or two aryl groups. These compounds are similar in structure to alcohols and phenols.

Crown ethers are large cyclic compounds, which consist of a ring containing several ether groups.

A class of organic compounds whose molecule are large rings containing a number of ether linkages. These ethers are called crown ether due to their shape.

They have −OCH2CH2− repeating units.

The name 18-crown-6 indicates that there are 18 atoms in the ring, 6 of which are oxygen.

They trapped metal ion into their cavity.

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