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Hydrolysis of an Ester

Hydrolysis of an Ester

Triglycerides
Triglycerides are triester molecules composed of a glycerol backbone that is bound to 3 fatty acids. These form the basis of many biological lipids that are found in vegetable oils and fats. Lipids that are isolated from plant material are the basis of vegetable oils, whereas lipids extracted from animals are used as lard or general sources of fats.
A fatty acid molecule has a long carbon chain — between 12 and 20 carbons — with a weak organic acid at one end. Some...

Hydrolysis of an Ester

Hydrolysis of an Ester

Source: Lara Al Hariri and Ahmed Basabrain at the University of Massachusetts Amherst, MA, USA

Hydrolysis of an Ester

Hydrolysis of an Ester

Source: Lara Al Hariri at the University of Massachusetts Amherst, MA, USA

Synthesis of Esters Via a Greener Steglich Esterification in Acetonitrile

Synthesis of Esters Via a Greener Steglich Esterification in Acetonitrile

A modified Steglich esterification reaction was used to synthesize a small library of ester derivatives with primary and secondary alcohols. The methodology uses a non-halogenated and greener solvent, acetonitrile, and enables product isolation in high yields without the need for chromatographic...

One-pot Microwave-assisted Conversion of Anomeric Nitrate-esters to Trichloroacetimidates

One-pot Microwave-assisted Conversion of Anomeric Nitrate-esters to Trichloroacetimidates

A 2-azido-1-nitrate-ester can be converted to the corresponding 2-azido-1-trichloroacetimidate in a one-pot procedure. The goal of the manuscript is to demonstrate utility of the microwave reactor in carbohydrate...

Conversion of Fatty Acid Methyl Esters by Saponification for Uk'37 Paleothermometry

Conversion of Fatty Acid Methyl Esters by Saponification for U^k'₃₇ Paleothermometry

Source: Laboratory of Jeff Salacup - University of Massachusetts Amherst
The product of an organic solvent extraction, a total lipid extract (TLE), is often a complex mixture of hundreds, if not thousands, of different compounds. The researcher is often only interested in a handful of compounds or, if interested in many, may need to remove unwanted constituents that are"in the way" or co-eluting. For example, the concentrations of individual compounds in a sample are often determined on a gas...

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Updated: Jan 20, 2026

Hydrolysis of an Ester: Preparation of Soap - Concept

Hydrolysis of an Ester: Preparation of Soap - Concept

l-Valine ethyl ester hydro-chloride.

Erin Van Rooyen¹, Eric Cyriel Hosten¹, Richard Betz¹

¹Nelson Mandela University, Summerstrand Campus, Department of Chemistry, University Way, Summerstrand, PO Box 77000, Port Elizabeth, 6031, South Africa.

|January 19, 2026

Summary

This summary is machine-generated.

The hydrochloride salt of ethyl l-valinate was studied. Crystal structure analysis revealed hydrogen bonds and other contacts forming sheet-like arrangements in the solid state.

Keywords:

amino acid crystal structure protecting group

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Hydrolysis of an Ester: Preparation of Soap - Procedure

Hydrolysis of an Ester: Preparation of Soap - Procedure

Hydrolysis of an Ester: Preparation of Soap - Prep

Hydrolysis of an Ester: Preparation of Soap - Prep

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Last Updated: Jan 20, 2026

Hydrolysis of an Ester: Preparation of Soap - Concept

Hydrolysis of an Ester: Preparation of Soap - Concept

Hydrolysis of an Ester: Preparation of Soap - Procedure

Hydrolysis of an Ester: Preparation of Soap - Procedure

Hydrolysis of an Ester: Preparation of Soap - Prep

Hydrolysis of an Ester: Preparation of Soap - Prep

Area of Science:

Crystallography
Chemical Crystallography
Structural Chemistry

Background:

The compound (2S)-1-ethoxy-3-methyl-1-oxobutan-2-aminium chloride is the hydrochloride salt of the ethyl ester of l-valine.
Understanding the solid-state structure of amino acid derivatives is crucial for pharmaceutical and materials science applications.

Purpose of the Study:

To determine the crystal structure of the hydrochloride salt of ethyl l-valinate.
To investigate the intermolecular interactions, including hydrogen bonding and other non-covalent contacts, within the crystal lattice.

Main Methods:

Single-crystal X-ray diffraction was employed to elucidate the three-dimensional crystal structure.
Analysis of the crystal structure involved identifying hydrogen bond donors and acceptors, as well as other significant intermolecular contacts.

Main Results:

The crystal structure was successfully determined, revealing the arrangement of the title compound in the asymmetric unit.
Classical N-H⋯Cl hydrogen bonds were identified as a primary intermolecular interaction.
Additional C-H⋯O and C-H⋯Cl contacts were observed, contributing to the overall crystal packing.

Conclusions:

The crystal structure of ethyl l-valinate hydrochloride is characterized by a network of hydrogen bonds and C-H⋯Cl/O contacts.
These interactions organize the molecules into sheets oriented perpendicular to the crystallographic a axis.
The findings provide insights into the solid-state behavior and intermolecular forces governing this amino acid derivative.