| dc.description.abstract | The literature records but few investigations of the
preparation and properties or guaiacol coupled with diazotized
amines. This would seem rather odd in view of the
The literature records but few investigations of the
preparation and properties or guaiacol coupled with diazot1zed
amines. This would seem rather odd in view of the
decided value that the azo derivatives of a number of closely
related phenols have proved to possess, not only as
dyes, but also as antiseptics and bactericides. The preparation
of the free bases of benzene-azo-guaiacol and
guaiacol dis-azo benzene have been reported, and a number
of acetyl derivatives of azo guaiacol compounds have been
investigated, but the guaiacol compounds analagous to such
dyes as methyl orange, Congo red, and Orange-II are not described
in the literature.
In this investigation a number of dyes have been prepared
by coupling guaiacol with various diazotized amines
Some of the physical properties of these compounds have been
noted . In all oases the sodium salt of the dye has been prepared,
and in a few instances the free base has been satisfactorily
isolated, although in the majority of instances the
free base was precipitated as a viscous, tarry substance
Which resisted attempts at recrystallization. In an attempt to secure an easily recrystallizable modification of the dyes
the aoetyl derivatives of a few were prepared, but these only
assumed crystalline form in the case of the acetyl derivatives of benzidine azo guaiacol and p- toluidine azo guaiaool. | |
