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why is it necessary to control the pH

Asked by 18th February 2009, 7:47 AM
Answered by Expert
Answer:

Because NH3 is a base and if the solution become acidic it can form anilinium ion which is meta directing grpoup and that is why you cannot get desired product this the fact that it is necessary to control the pH during the reaction of aldehydes and ketones with ammonia derivatives.

Answered by Expert 26th February 2009, 9:16 AM
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