Amideid

Amideid is not a standard term in chemistry. It does not designate a well-defined functional group or compound in the widely accepted IUPAC nomenclature. In published literature and databases, “amideid” is rarely used and, when encountered, is typically a misspelling or an informal shorthand for related terms such as amide, amidine, or amidinate. Because there is no universally agreed definition, interpretations of the term can vary by author or field.

As a point of reference, amide refers to the functional group R-CO-NR'R'' derived from carboxylic acid derivatives; amides are typically neutral, stabilized by resonance between the carbonyl and the adjacent nitrogen, and they undergo hydrolysis under strong acidic or basic conditions. Primary and secondary amides possess N–H bonds, while tertiary amides do not. Amides are common in polymers, biological peptides, and many synthetic intermediates.

Related terms sometimes confused with or invoked alongside amideid include amidine and amidinate. An amidine has the general structure R-C(=NH)-NR'R'', featuring a C=N bond adjacent to an amino group and typically behaving as a stronger base. An amidinate refers to an anionic ligand derived from an amidine, often used in coordination chemistry. Inconsistent use of these terms can lead to confusion, so locating a precise definition from the source is advisable if the term amideid appears in a text.