Homework Answers
2.common name is butylcyclohexylamine.
butyl is for 4 carbon chain, cyclohexyl for cyclohexane ring and amine for NH group.
As b of butyl comes first in alphabet than c of cyclohexyl, so butyl is written first.
4. iupac name is. N-methylpropanamide
(first substituent of N is written, then group of carbonyl side is named. As methyl groupbis attachef tonN, so N-methyl is used, propan for 3 carbon chain, amife of CONH group.)
5.to prepare given compound benzamide, benzoic acid and NH3 are required.
Ph-C(O)-OH + NH3 - - - > Ph-C(O)-O-NH4+---> Ph-C(O)-NH2
second step is due to heat.
thus option (c) is correct.
option (a) is incorrect because in (a) no carbonyl grouo is given in both reactants.
option (b) is incorrect because aniline + methanoic acid yield N-phenylmethanamide.
Ph-NH2 + HC(O)-OH - - - > H-C(O)-N-Ph
option(d) benzoic acid +methyl amine is incorrect, as it will give N-methylbenzamide.
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