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Nomenclature of Carboxylic Acid Derivatives: Acid Halides, Esters, and Acid Anhydrides

Nomenclature of Carboxylic Acid Derivatives: Acid Halides, Esters, and Acid Anhydrides

Naming Acid Halides
The IUPAC and common names of acid halides are derived from the corresponding carboxylic acids, by changing “ic acid” to “yl halide.” For example, as shown below, the IUPAC name ethanoyl chloride is derived from ethanoic acid, and the common name, acetyl chloride, is obtained from acetic acid.

Depolarizing Blockers: Pharmocokinetics

Depolarizing Blockers: Pharmocokinetics

Depolarizing blockers are administered through intravenous injection. Succinylcholine is the most common choice of depolarizing blockers in emergency clinical practices. Although they have a rapid onset, they readily diffuse away from the motor end plate into the extracellular fluid. They are metabolized by enzymes such as liver butyrylcholinesterase and plasma pseudocholinesterases. This produces a short duration of action, typically 5-10 minutes long, unlike nondepolarizing blockers, which...

Nomenclature of Carboxylic Acid Derivatives: Amides and Nitriles

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.

IUPAC Nomenclature of Aldehydes

IUPAC Nomenclature of Aldehydes

Aldehydes are named based on the systematic nomenclature rules set by the IUPAC. For acyclic aldehydes, the longest carbon chain containing the aldehydic (–CHO) group is considered the parent chain. The aldehyde is named by replacing the last letter “e” in the hydrocarbon name with “al”. For instance, a simple, seven-carbon-membered acyclic aldehyde is called heptanal, derived from heptane. The carbon chain is numbered starting from the aldehydic carbon, although the aldehydic carbon’s locant...

Phase II Reactions: Sulfation and Conjugation with α-Amino Acids

Phase II Reactions: Sulfation and Conjugation with α-Amino Acids

Sulfation and α-amino acid conjugation are two critical biotransformation reactions in drug metabolism. Sulfation, a phase II biotransformation reaction, involves adding a polar sulfate group to a drug, enhancing its water solubility and promoting excretion. This process can either co-occur with or occur independently of glucuronidation. Nonmicrosomal sulfotransferase enzymes catalyze the process. The reaction involves 3'-phosphoadenosine-5'-phosphosulfate or PAPS coenzyme activation, sulfur...

Nomenclature of Secondary and Tertiary Amines

Nomenclature of Secondary and Tertiary Amines

The secondary and tertiary amines are derivatives of ammonia, where two and three of its hydrogens are replaced by alkyl groups, respectively. Secondary and tertiary amines can be symmetrical with identical alkyl groups attached to the nitrogen atom or unsymmetrical when more than one type of alkyl group is present. The standard nomenclature of secondary and tertiary amines is similar to the names given to the primary amines. They are generally named alkylamines. As depicted in Figure 1, for...

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Updated: Jun 2, 2026

Microwave-assisted One-pot Synthesis of N-succinimidyl-4-[18F]fluorobenzoate ([18F]SFB)

Microwave-assisted One-pot Synthesis of N-succinimidyl-4-[¹⁸F]fluorobenzoate ([¹⁸F]SFB)

Published on: June 28, 2011

N-(4-Methyl-phen-yl)succinamic acid.

B S Saraswathi, Sabine Foro, B Thimme Gowda

Acta Crystallographica. Section E, Structure Reports Online

|April 28, 2011

Summary

This study details the molecular conformation and crystal packing of a novel organic compound C(11)H(13)NO(3). Molecules form chains via hydrogen bonds, revealing insights into crystal engineering and intermolecular interactions.

Area of Science:

Organic Chemistry
Crystallography
Molecular Structure

Background:

Understanding molecular conformation is crucial for predicting chemical properties.
Crystal packing influences material characteristics and intermolecular forces.

Purpose of the Study:

To elucidate the specific molecular conformations of the amide and acid groups in C(11)H(13)NO(3).
To investigate the intermolecular interactions and crystal packing arrangement of the title compound.

Main Methods:

Single-crystal X-ray diffraction was employed to determine the three-dimensional structure.
Analysis of bond and torsional angles to describe molecular conformation.
Identification of hydrogen bonding networks within the crystal lattice.

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A Strategy for Sensitive, Large Scale Quantitative Metabolomics

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Modification and Functionalization of the Guanidine Group by Tailor-made Precursors

Modification and Functionalization of the Guanidine Group by Tailor-made Precursors

Published on: April 27, 2017

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Last Updated: Jun 2, 2026

Microwave-assisted One-pot Synthesis of N-succinimidyl-4-[18F]fluorobenzoate ([18F]SFB)

Microwave-assisted One-pot Synthesis of N-succinimidyl-4-[¹⁸F]fluorobenzoate ([¹⁸F]SFB)

Published on: June 28, 2011

A Strategy for Sensitive, Large Scale Quantitative Metabolomics

A Strategy for Sensitive, Large Scale Quantitative Metabolomics

Published on: May 27, 2014

Modification and Functionalization of the Guanidine Group by Tailor-made Precursors

Modification and Functionalization of the Guanidine Group by Tailor-made Precursors

Published on: April 27, 2017

Main Results:

The amide N-H and C=O bonds adopt an anti conformation.
The acid group's C=O and O-H bonds are in a syn conformation.
Molecules self-assemble into infinite chains along the b-axis via N-H⋯O and O-H⋯O hydrogen bonds.

Conclusions:

The study provides a detailed structural analysis of C(11)H(13)NO(3).
The observed hydrogen bonding pattern dictates the crystal structure and suggests potential for supramolecular assembly.
This structural information is valuable for designing new materials with specific properties.