The reaciton of an alkyl halide with a metal alkoxide forming an ether is known as

Options

A. Frankland reaction
B. Corey-house synthesis
C. Williamson synthesis
D. Wurtz reaction

Answer

C

Explanation

It is an important laboratory method for the preparation of symmetrial and unsymmetrical ethers.
`{:(,R'barONa^(+),,R-OR',),(R-X+,or,rarr,or,+NaX),(,ArbarONa,R-OAr,,):}`
Yield from `RX: CH_(3)X gt I^(@)RX gt 2^(@)RX( gt 3^(@)RX)`
`(CH_(3))_(2)CHOHoverset(Na)(rarr)underset("Sodium isopropoxide")((CH_(3))_(2)CHbar(O)Na^(+)) overset (CH_(3)CH_(2)CH_(2)Br)(rarr)`
`underset("Isopropyl n-propyl ether")(CH_(3)CH_(2)CH_(2)-O-CH(CH_(3))_(2))`
When `R` is a methyl or ethyl group, methyl or ethyl sulphate, respectivily, can be used instead of the corresponding alkyl halide:

This has been modified to a general method for preparing ethers by refluxing an alcohol with an ester of toluone`-p` sulphonic acid in the presence of sodium: