Diazotization of Aniline Derivatives: Diazo Coupling

CCA! Volume 5

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Diazotization of Aniline Derivatives: Diazo Coupling

Solutions of 4-nitroaniline and anthranilic acid in aqueous HCl are treated with sodium nitrite solution to form the corresponding diazonium salts.


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Voiceover
Diazonium salts are useful for preparing dyes by coupling with nucleophilic reagents. Solutions of 4-nitroaniline and anthranilic acid in aqueous hydrochloric acid are treated with sodium nitrite solution to form the corresponding diazonium salts. These salts are treated with an aqueous solution of 2-naphthol. Red precipitates of diazo dyes form.

Discussion

Design, Text and Demonstrator:
	Gary Trammell	University of Illinois at Springfield, Springfield, IL 62794

Videographer/Editor:
	Steve Dykema	University of Illinois at Springfield, Springfield, IL 62794

Voice:
	Margaret Biddle	University of Wisconsin - Madison, Madison, WI 53706

Audio Production:
	Greg Minix	University of Wisconsin - Madison, College of Engineering, Madison, WI 53706
	Jerrold J. Jacobsen	University of Wisconsin - Madison, Madison, WI 53706