Dyes Containing Long-Chained Aliphatic Radicals

Authors

Fred W. Hoyt, Iowa State CollegeFollow
H. Gilman, Iowa State CollegeFollow

Document Type

Research

Abstract

The investigation of the synthesis and properties of compounds containing long-chained aliphatic radicals has been extended to the preparation of several azo dyes, coupling products of ß-naphthol with the appropriately substituted aromatic diazonium chlorides. The dyes prepared include those from a series of three p-alkoxyanilines, ROC₆H₄NH₂, where R is n-C₁₂H₂₅-, n-C₁₄H₂₉-, and n-C₁₆H₃₃-, all deep red in color; and two brighter red compounds from p-( N-alkylsulfonamido )-anilines, H₂ NC₆H₄S0₂NHR, where R is n-C₁₂H₂₅- and n-C₁₈H₃₇-. These compounds are crystalline solids, soluble in the usual organic solvents and in fats and oils. The melting points of the compounds are such that they might serve as derivatives for the corresponding anilines. The compounds prepared and their melting points are: 1- (p-dodecoxyphenylazo )-2-naphthol, m. 80-82°; 1-(p-tetradecoxyphenylazo )-2-naphthol, m. 81.5-83°; 1-(p-hexadecoxyphenylazo )-2-naphthol, m. 82-84°; 1-[p-(N-dodecylsulfonamido )-phenylazo ]-2-naphthol, m. 163-164 ° ; and 1- [p-( N-octadecylsul fonamido) - phenylazo ]-2-naphthol, m. 158-159.5°.

Publication Date

1940

Journal Title

Proceedings of the Iowa Academy of Science

Volume

47

Issue

1

First Page

262

Last Page

262

Copyright

©1940 Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

Recommended Citation

Hoyt, Fred W. and Gilman, H. (1940) "Dyes Containing Long-Chained Aliphatic Radicals," Proceedings of the Iowa Academy of Science, 47(1), 262-262.
Available at: https://scholarworks.uni.edu/pias/vol47/iss1/50