2-(2,6-Dichloro-benz-yl)pyrrolidine-1,3-dione.

Summary

This study details the molecular structure of a novel compound, C(11)H(9)Cl(2)NO(2). The research reveals a significant dihedral angle between its aromatic and pyrrolidinedione rings, crucial for understanding its chemical properties.

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Basicity of Heterocyclic Aromatic Amines

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Aryldiazonium Salts to Azo Dyes: Diazo Coupling01:11

Aryldiazonium Salts to Azo Dyes: Diazo Coupling

The reaction of weakly electrophilic aryldiazonium (also called arenediazonium) salts with highly activated aromatic compounds leads to the formation of products with an —N=N— link, called an azo linkage. This reaction, presented in Figure 1, is known as diazo coupling and occurs without the loss of the nitrogen atoms of the aryldiazonium salt. Highly activated aromatic compounds such as phenols or arylamines favor the diazo coupling reaction. The coupling generally occurs at the para position.
Hydrolysis of Chlorobenzene to Phenol: Dow Process01:10

Hydrolysis of Chlorobenzene to Phenol: Dow Process

Simple aryl halides do not react with nucleophiles under normal conditions. However, the reaction can proceed under drastic conditions involving high temperatures and high pressure to give the substituted products. For example, chlorobenzene is converted to phenol using aqueous sodium hydroxide at 350 °C under high pressure by the Dow process. The reaction follows an elimination-addition mechanism involving a benzyne intermediate. Here, the chloride ion is eliminated to generate the benzyne...
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Nomenclature of Aromatic Compounds with Multiple Substituents

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Diazonium Group Substitution: –OH and –H01:19

Diazonium Group Substitution: –OH and –H

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