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Related Concept Videos

Nomenclature of Carboxylic Acid Derivatives: Amides and Nitriles01:11

Nomenclature of Carboxylic Acid Derivatives: Amides and Nitriles

Naming Amides
The IUPAC and common names of amides are derived from the parent carboxylic acid, by replacing the suffix “oic acid” and “ic acid,” respectively, with “amide.” In the following example, the IUPAC name ethanamide is derived from ethanoic acid, and the common name, acetamide, is obtained from acetic acid.
Carboxylic Acid Derivatives: Overview01:15

Carboxylic Acid Derivatives: Overview

Carboxylic acid derivatives are formed by replacing the hydroxyl group of carboxylic acids with a different functional group. The most common carboxylic acid derivatives are:
Adrenergic Agonists: Chemistry and Structure-Activity Relationship01:16

Adrenergic Agonists: Chemistry and Structure-Activity Relationship

Adrenergic agonists' structure-activity relationship (SAR) determines their selectivity and efficacy. These agonists comprise a phenylethylamine moiety with an aromatic ring and an ethylamine side chain.
Aromatic ring substitutions: Substituting the aromatic ring with –OH groups at positions 3 and 4 yields catecholamines (e.g., epinephrine), which have a high affinity for adrenoceptors. Hydrogen bonding between –OH groups and receptors enhances adrenergic activity.
Separation of the aromatic...
Nomenclature of Aryl and Heterocyclic Amines01:10

Nomenclature of Aryl and Heterocyclic Amines

The simplest aromatic amine is phenylamine, which contains an –NH2 functionality directly attached to an aromatic ring. The name aniline is designated for this skeleton. As shown in Figure 1, the common names of the functionalized anilines involve prefixes ortho-, meta-, and para- to indicate the substitution position. Different functionalized aniline derivatives also have notable trivial names.
Nomenclature of Primary Amines01:17

Nomenclature of Primary Amines

Primary, secondary, and tertiary amines are compounds consisting of one, two, and three alkyl groups connected to the amino group (–NH2), respectively. As depicted in Figure 1, the common name of the primary amines is obtained by adding the suffix -amine to the alkyl substituent attached to the amino group as the corresponding alkylamine.
IUPAC Nomenclature of Carboxylic Acids01:16

IUPAC Nomenclature of Carboxylic Acids

IUPAC names of carboxylic acids are systematically derived following a few rules discussed below.
For acyclic saturated monocarboxylic acids, the longest hydrocarbon chain containing the –COOH carbon is identified as the parent chain. Then, the last -e of the parent hydrocarbon name is replaced with a suffix -oic acid.

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Updated: Jul 7, 2026

Synthesis of Antiviral Tetrahydrocarbazole Derivatives by Photochemical and Acid-catalyzed C-H Functionalization via Intermediate Peroxides (CHIPS)
06:34

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N-Phenyl-[1,1'-biphen-yl]-2-carboxamide.

Nour El Houda Guerah1, Attia Tarek2, Allaoui Mahfoud Mounib2

  • 1Laboratoire des sciences analytiques materiaux et environnement (LSAME) Université Oum El Bouaghi Oum El Bouaghi 04000 Algeria.

Iucrdata
|July 6, 2026
PubMed
Summary

This study details the crystal structure of a C19H15NO molecule, revealing its carboxamide fragment and biphenyl unit. The research highlights the formation of a 3D supramolecular network through hydrogen bonding and C-H interactions.

Keywords:
C—H⋯π inter­actionsbiphenyl derivativecarboxamidecrystal structurehydrogen bonding

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Area of Science:

  • Crystallography
  • Supramolecular Chemistry

Background:

  • The title molecule, C19H15NO, features a carboxamide group linking a phenyl and a biphenyl unit.
  • Understanding molecular arrangement in crystals is crucial for materials science.

Purpose of the Study:

  • To elucidate the crystal structure and supramolecular assembly of the C19H15NO molecule.
  • To investigate the intermolecular interactions governing the crystal packing.

Main Methods:

  • Single-crystal X-ray diffraction was employed to determine the molecular and crystal structure.
  • Analysis of hydrogen bonding (N-H⋯O) and C-H⋯π interactions was performed.

Main Results:

  • The crystal structure reveals molecules linked into chains along the a axis via N-H⋯O hydrogen bonds.
  • These chains are interconnected by C-H⋯π interactions, forming an extensive three-dimensional supramolecular network.

Conclusions:

  • The C19H15NO molecule self-assembles into a robust 3D supramolecular network in the solid state.
  • Intermolecular interactions, specifically hydrogen bonds and C-H⋯π contacts, dictate the observed crystal packing.