Water-soluble monoazo dyes for polyamide fibres wherein the diazo component is 5-aminoiso- thiazole-4-sulphonic acid and the coupling component is an arylamine having no sulphonic acid groups.
Katritzky, Alan R.; Rachwal, Bogumila; Rachwal, Stanislaw, Recueil des Travaux Chimiques des Pays-Bas, 1990, vol. 109, p. 337 - 345
作者:Katritzky, Alan R.、Rachwal, Bogumila、Rachwal, Stanislaw
DOI:——
日期:——
A Phosphine-Mediated Dearomative Skeletal Rearrangement of Dianiline Squaraine Dyes
作者:Emily P. Bacher、Kevin J. Koh、Antonio J. Lepore、Allen G. Oliver、Olaf Wiest、Brandon L. Ashfeld
DOI:10.1021/acs.orglett.1c00248
日期:2021.4.16
A phosphorus(III)-mediated dearomatization of ortho-substituted dianiline squaraine dyes results in an unusual skeletalrearrangement to provide exotic, highly conjugated benzofuranone and oxindole scaffolds bearing a C3 side chain comprised of a linear conflagration of an enol, a phosphorus ylide, and 2,4-disubstituted aniline. Employing experimental and computational analysis, a mechanistic evaluation