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(A) The reaction of a ketone (like acetone) with a primary amine $(R-NH_2)$ leads to the formation of an imine (Schiff base),which contains the $>C =

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$C_6H_5NH_2$

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(A) The reaction of a ketone (like acetone) with a primary amine $(R-NH_2)$ leads to the formation of an imine (Schiff base),which contains the $>C = N -$ group.Acetone is $CH_3COCH_3$.$CH_3COCH_3 + C_6H_5NH_2 \rightarrow CH_3C(=NC_6H_5)CH_3 + H_2O$.$C_6H_5NH_2$ (aniline) is a primary amine,whereas $(CH_3)_3N$ is a tertiary amine,$C_6H_5NHC_6H_5$ is a secondary amine with no replaceable hydrogen on nitrogen,and $CH_3CH_2-NHCH_3$ is a secondary amine. Only primary amines react with ketones to form imines containing the $>C = N -$ linkage.

Which of the following compounds reacts with acetone to form a product containing the $>C = N -$ group?

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