A-C(=E)-B
| Name | A | B | E | Functional group | Name | A | B | E | Functional group |
|---|---|---|---|---|---|---|---|---|---|
| ACIDS (carbonyl-based) | |||||||||
| Carbonic acid | -OH | -OH | =O | Carbonate esters | Formic acid | -H | -OH | =O | Carboxylic acids |
| ACID AMIDES | |||||||||
| Carbamic acid | -NH2 | -OH | =O | Carbamates | Formamide | -H | -NH2 | =O | Amides |
| Urea | -NH2 | -NH2 | =O | Ureas | |||||
| ACID HALIDES | |||||||||
| Carbonochloridic acid | -X | -OH | =O | Chloroformates | Formyl fluoride | -H | -X | =O | Acyl halides |
| Carbonyl dichloride | -X | -X | =O | ||||||
| IMIDIC ACIDS (carbonimidoyl-based) | |||||||||
| Carbonimidic acid | -OH | -OH | =NH | Formimidic acid | -H | -OH | =NH | Carboximidates | |
| IMIDIC ACID AMIDES | |||||||||
| Carbamimidic acid | -NH2 | -OH | =NH | Formimidamide | -H | -NH2 | =NH | Amidines | |
| Guanidine | -NH2 | -NH2 | =NH | Guanidines | |||||
| IMIDIC ACID HALIDES | |||||||||
| Carbonochloridimidic acid | -X | -OH | =NH | Formimidoyl chloride | -H | -X | =NH | ||
| Carbonimidoyl dichloride | -X | -X | =NH | ||||||
| THIOIC O-ACIDS (carbonothioyl-based) | |||||||||
| Carbonothioic O,O-acid | -OH | -OH | =S | Thioformic O-acid | -H | -OH | =S | ||
| THIOIC O-ACID AMIDES | |||||||||
| Carbamothioic O-acid | -NH2 | -OH | =S | Thiocarbamates | Thioformamide | -H | -NH2 | =S | Thioamides |
| Thiourea | -NH2 | -NH2 | =S | Thioureas | |||||
| THIOIC O-ACID HALIDES | |||||||||
| Carbonochloridothioic O-acid | -X | -OH | =S | Thioformyl chloride | -H | -X | =S | ||
| Carbonothioyl dichloride | -X | -X | =S | ||||||