(c)The amino group is at C-2 of a three-carbon chain that bears a phenyl substituent at itsterminus.(d)Phenylephrine is named systematically as an ethanol derivative.22.24(a)There are fve isomers of C7H9N that contain a benzene ring.(b)Benzylamine is the strongest base because its amine group is bonded to an sp3-hybridizedcarbon. Benzylamine is a typical alkylamine, with a Kbof 231025. All the other isomers arearylamines, with Kbvalues in the 10210range.(c)The formation of N-nitrosoamines on reaction with sodium nitrite and hydrochloric acid is acharacteristic reaction of secondary amines. The only C7H9N isomer in this problem that is asecondary amine is N-methylaniline.(d)Ring nitrosation is a characteristic reaction of tertiary arylamines.
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