1.

How many of the following ethers canot be prepared by Williamson's sythensis? CH_(3)OCH_(2)CH_(3),C_(6)H_(5)OCH_(3),C_(6)H_(5)OCH_(2)CH_(3),(C_(6)H_(5))_(2)O, (CH_(3))_(3)COCH_(3),(CH_(3))_(3)COCH_(2)CH_(3),(CH_(3))_(3)COC(CH_(3))_(3),(C_(2)H_(5))_(2)O,C_(6)H_(5)CH_(2)OC_(6)H_(5).

Answer»


Solution :Williamson's synthesis requires that the alkyl halide should be `1^(@)` and alkoxide ion may be `1^(@), 2^(@)` or `3^(@)` THUS, two ethers which cannot be prepared by williamson's synthesis are:
`(C_(6)H_(5))_(2)O,(CH_(3))_(3)COC(CH_(3))_(3)`.


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