Diethyl oxalate is used for distinguishing pr | vedclass

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(B) Diethyl oxalate is used for distinguishing $1^o, 2^o$ and $3^o$ amines because they react differently.$1^o$ amines form crystalline substituted ox

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amines

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(B) Diethyl oxalate is used for distinguishing $1^o, 2^o$ and $3^o$ amines because they react differently.$1^o$ amines form crystalline substituted oxamides.$2^o$ amines form liquid diethyl oxamic esters.$3^o$ amines do not react with diethyl oxalate because they lack a replaceable hydrogen atom.$RNH_2 + (COOC_2H_5)_2 	o (CONHR)_2 + 2 C_2H_5OH$ ($1^o$ amine,crystalline oxamide)$R_2NH + (COOC_2H_5)_2 	o (CONR_2)(COOC_2H_5) + C_2H_5OH$ ($2^o$ amine,liquid oxamic ester)$R_3N + (COOC_2H_5)_2 	o 	ext{No reaction}$ ($3^o$ amine)

Diethyl oxalate is used for distinguishing primary,secondary and tertiary

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