4-Dimethyl amino pyridine is used in reaction.Product formed contains amino group along with amide & is highly water soluble. To remove 4-DMAP aqueous work up done. Please give solution. Thanks.
Weak acid like 5% (about 0.8 N HCl) can disdolve the amine then the wesk acidic extract can be partitioned with chloroform to wash the layer
Approximate concentrations are require in compared with the WHO permissible limts
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