<Tr> <Td> Hinsberg reaction </Td> <Td> Sulfonamides </Td> <Td> Reagents: sulfonyl chlorides </Td> </Tr> <Tr> <Td> Amine--carbonyl condensation </Td> <Td> Imines </Td> </Tr> <Tr> <Td> Organic oxidation </Td> <Td> Nitroso compounds </Td> <Td> Reagent: peroxymonosulfuric acid </Td> </Tr> <Tr> <Td> Organic oxidation </Td> <Td> Diazonium salt </Td> <Td> Reagent: nitrous acid </Td> </Tr>

Which functional group is present in amine compounds