The mixture of three amines is treated with diethyl oxalate. The primary amine forms a solid oxamide, a secondary amine gives a liquid oxamic ester while tertiary amine does not react.
Primary amine is recovered when solid oxamide is heated with caustic potash solution and collected as distillate on distilling the reaction mixture.
The liquid (mixture of oxamic ester+ tertiary amine) is subjected to fractional distillation when tertiary amine distils over.
The remaining liquid is distilled with KOH to recover secondary amine.
7 comments:
Why secondary amines don't attached with both of Oxygen??
Tnk u very much
1 mole secondary amine takes part whereas in primary amine 2 mole takes part
In primary amine 2 moles takes part While in secondary 1 mol
I feel like
after addition of two r bulky carbon groups in Diethyl oxalate it becomes difficult for the compound to handle 2 more r groups
Hope it answers 😊
Why tertiary amine don't react ?????
it should be .. but there is mistake here
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