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Preparation of 1° Amines: Gabriel Synthesis

Preparation of 1° Amines: Gabriel Synthesis

Direct alkylation is not a suitable method for synthesizing amines because it produces polyalkylated products. Gabriel synthesis is the most preferred method to exclusively make primary amines. The method uses phthalimide, which contains a protected form of nitrogen that participates in alkylation only once to predominantly give primary amines.
Strong bases like NaOH or KOH deprotonate the phthalimide to form the corresponding anion, which acts as a nucleophile. Further, the anion attacks an...

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...

Preparation of Amides

Preparation of Amides

Amides are synthesized by treating carboxylic acids with amines in the presence of dehydrating agents like dicyclohexylcarbodiimide (DCC).
The DCC-promoted synthesis of amides begins with the protonation of DCC by carboxylic acid. The protonation makes it a better acceptor. Next, the addition of carboxylate to the protonated carbodiimide gives a reactive acylating agent.
Subsequently, the amine acts as a nucleophile that attacks the acylating agent to form a tetrahedral intermediate. In the...

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Related Experiment Video

Updated: Jun 5, 2026

Preparation of N-(2-alkoxyvinyl)sulfonamides from N-tosyl-1,2,3-triazoles and Subsequent Conversion to Substituted Phthalans and Phenethylamines

Preparation of N-(2-alkoxyvinyl)sulfonamides from N-tosyl-1,2,3-triazoles and Subsequent Conversion to Substituted Phthalans and Phenethylamines

Published on: January 3, 2018

N-(Imidazol-1-ylmeth-yl)phthalimide.

Su-Qing Wang, Fang-Fang Jian, Huan-Qiang Liu

Acta Crystallographica. Section E, Structure Reports Online

|January 5, 2011

Summary

Researchers synthesized 2-(imidazol-1-ylmeth-yl)isoindole-1,3-dione using N-(bromo-meth-yl)phthalimide and imidazole. The crystal structure analysis revealed stabilization through C-H⋯π and π-π interactions.

Area of Science:

Organic Chemistry
Crystallography

Background:

Phthalimide derivatives are important in medicinal chemistry and materials science.
Understanding intermolecular interactions is crucial for crystal engineering and predicting material properties.

Purpose of the Study:

To synthesize and characterize the novel compound 2-(imidazol-1-ylmeth-yl)isoindole-1,3-dione.
To investigate the intermolecular interactions governing the crystal packing of the synthesized compound.

Main Methods:

Chemical synthesis involving the reaction of N-(bromo-meth-yl)phthalimide with imidazole in chloroform.
Single-crystal X-ray diffraction to determine the crystal structure and analyze intermolecular interactions.

Main Results:

Successful synthesis of 2-(imidazol-1-ylmeth-yl)isoindole-1,3-dione (C12H9N3O2).

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Published on: November 22, 2016

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 5, 2026

Preparation of N-(2-alkoxyvinyl)sulfonamides from N-tosyl-1,2,3-triazoles and Subsequent Conversion to Substituted Phthalans and Phenethylamines

Preparation of N-(2-alkoxyvinyl)sulfonamides from N-tosyl-1,2,3-triazoles and Subsequent Conversion to Substituted Phthalans and Phenethylamines

Published on: January 3, 2018

Preparation and Reactivity of a Triphosphenium Bromide Salt: A Convenient and Stable Source of Phosphorus(I)

Preparation and Reactivity of a Triphosphenium Bromide Salt: A Convenient and Stable Source of Phosphorus(I)

Published on: November 22, 2016

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

Crystal structure analysis confirmed the presence of stabilizing weak intermolecular C-H⋯π interactions.

Intermolecular π-π interactions were identified with centroid-centroid distances ranging from 3.6469(8) to 3.8831(9) Å.

Conclusions:

The synthesis provides a new phthalimide derivative with potential applications.
The crystal structure highlights the role of non-covalent interactions in stabilizing organic molecular crystals.
This study contributes to the understanding of structure-property relationships in organic compounds.