Keil, D. published the artcileSynthesis and characterization of 1,3-bis-(2-dialkylamino-5-thiazolyl)-substituted squaraines and their 2-(dialkylamino)thiazole precursors, Related Products of catalysis-chemistry, the publication is Liebigs Annalen (1995), 979-84, database is CAplus.
By condensing of squaric acid with 2-(dialkylamino)-substituted thiazoles, a novel type of heterocyclic-substituted squaraines was prepared in moderate yield mostly. The squaraines are sparingly soluble in most organic solvents and exhibit narrow absorption bands in the visible range at ? 620-700 nm in solution. In dispersed form, the absorption bands of the squaraines are, however, broadened and shifted into the near IR region at ? 900 nm. These unique properties of the new squaraines suggest the use of these dyes as spectral sensitizers for laser-driven data recording or data storage media.
Liebigs Annalen published new progress about 6972-05-0. 6972-05-0 belongs to catalysis-chemistry, auxiliary class Thiourea,Amine,Aliphatic hydrocarbon chain,Amide, name is 1,1-Dimethylthiourea, and the molecular formula is C3H8N2S, Related Products of catalysis-chemistry.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia