Carboxamide

In organic chemistry carboxamides (or amino carbonyls) are functional groups with the general structure R-CO-NR'R′′ with R, R', and R′′ as organic substituents, or hydrogen.

Two amino acids, asparagine and glutamine, have a carboxamide group in them. The properties and reactivity of the carboxamide group arise from the hydrogen bonding capabilities of the -NH₂ group as well as the carbonyl oxygen. Furthermore, the carbon atom in a carboxamide has a low-lying LUMO that is capable of accepting electron density from the nonbonding lone pair on the nitrogen, weakening the carbon-oxygen bond.

单词	Carboxamide
释义	Carboxamide 英语百科 Carboxamide In organic chemistry carboxamides (or amino carbonyls) are functional groups with the general structure R-CO-NR'R′′ with R, R', and R′′ as organic substituents, or hydrogen. Two amino acids, asparagine and glutamine, have a carboxamide group in them. The properties and reactivity of the carboxamide group arise from the hydrogen bonding capabilities of the -NH₂ group as well as the carbonyl oxygen. Furthermore, the carbon atom in a carboxamide has a low-lying LUMO that is capable of accepting electron density from the nonbonding lone pair on the nitrogen, weakening the carbon-oxygen bond.
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