#functional group

• Aldimines — A class of nitrogenous organic compounds formally derived from an aldehyde, by replacing the carbonyl oxygen atom with an imino group (=N-R or =N-H). These represent secondary imines or Schiff bases with the general structure R-CH=N-R', serving as highly valuable intermediates in fine organic synthesis, drug manufacturing, and enzymatic biochemistry.
• Aldoxime — A nitrogenous organic compound belonging to the oxime class, formally or practically obtained through the condensation reaction of an aldehyde with hydroxylamine (NH2OH), having the general structure R-CH=N-OH. This type of oxime is characterized by the presence of a hydrogen atom bonded to the azomethine carbon, unlike ketoximes, serving as a valuable intermediate in nitrile and amide synthesis.
• Amide — An organic compound functionally derived from a carboxylic acid where the hydroxyl group (-OH) has been replaced by an amino group (-NH2, -NHR, or -NR2), having the general structural formula R-CO-NR2. Amides are fundamental in nature and industry, forming the peptide bonds that link amino acids into proteins and synthetic polymers like nylon, characterized by high chemical stability due to the conjugation of electrons from the nitrogen atom with the carbonyl group.
• Amidine — An organic compound functionally derived from a carboxamide where the oxo group (=O) has been replaced by an imino group (=NR), having the general structure R-C(=NR)-NR2. Amidines are structurally recognized as strong organic bases due to the resonance stabilization of the cation resulting from protonation, their core being frequently used in the synthesis of antiparasitic, antifungal drugs, and clinical diagnostic agents.
• Amine — An organic compound structurally derived, theoretically or practically, from ammonia by replacing one, two, or all three hydrogen atoms with hydrocarbon radicals (alkyl or aryl). Depending on the number of hydrogen atoms replaced, amines are classified into primary, secondary, and tertiary, possessing basic character and playing crucial biological and industrial roles (ranging from amino acids and neurotransmitters to dyes and pharmaceuticals).
• Amino- — A scientific combining form (prefixoid) used in international chemical nomenclature to indicate the presence of the monovalent functional group (-NH2), derived from ammonia, within the structure of an organic compound. As an invariable adjective, it is used in biochemistry to designate fundamental compounds, such as amino acids, which form the basis of protein synthesis in all living organisms.
• Aminone — A generic name rarely used to describe a cyclic organic molecular structure or an unsaturated ketone structurally modified by grafting an amino group. This isolated technical term is encountered in laboratory jargon for classifying certain synthesis intermediates used in preparing dyes or pharmaceutical compounds.
• Amination — The act of amirosa and its result; the technical or experimental process of amination or introducing amino groups into the structure of an organic compound or a plant polymer. It represents a structural stage aimed at modifying the surface reactivity of a biomaterial.
• Amination — The act of amirosi and its result; the technical, chemical, or experimental process of amination or introducing amino groups into an organic molecular network or onto a polymer surface. It represents a structural stage aimed at adding nitrogenous active sites onto a solid support.
• Aminating — Serving to introduce an amino group into the structure of an organic compound; an agent, reagent, or catalyst that drives the amination process. As a neuter noun, it designates a system or device used in laboratory technological workflows for grafting nitrogenous functions.
• Amination site — The result of the amirosi or amination process; an isolated structural area, bond, or grafting inside a macromolecule or on a polymer surface where an amino group has been successfully introduced. The term is used in technical laboratory jargon to indicate the local modification obtained following a chemical reaction.
• Amiration — A technical or industrial jargon variant for the process of amirating or grafting amira / amylic radicals into a complex organic structure. It represents a structural method aimed at modifying the solubility properties of a macromolecular compound.
• Alkyl — An obsolete technical term or rare spelling variant for the alkyl chemical radical; a monovalent, saturated, monatomic functional group derived formally from an alkane by removing one hydrogen atom (having the general formula CnH2n+1). It plays a fundamental role in the synthesis of organic compounds and in defining complex molecular structures.
• Nitrosyl — A monovalent chemical radical consisting of a nitrogen atom bonded to an oxygen atom (-NO), known in modern nomenclature as the nitrosyl radical; it represents an active functional group in the synthesis of organo-nitrogen compounds and in the study of redox reactions.