Pyrylocyanines. 35. Squarylium dyes based on tert-butyl-substituted pyrylium and thiopyrylium salts

ChemInform Abstract: Pyrylocyanines. Par

ChemInform Abstract: Pyrylocyanines. Part 35. Squarylium Dyes Derived from tert-Butyl Substituted Pyrylium and Thiopyrylium Salts.

✍ V. V. KURDYUKOV; M. A. KUDINOVA; A. I. TOLMACHEV 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 27 KB 👁 1 views

Pyrylocyanines. Part 35. Squarylium Dyes Derived from tert-Butyl Substituted Pyrylium and Thiopyrylium Salts. -The synthesis of squarylium dyes (cf. (III), 9 examples) by condensation of pyrylium or thiopyrylium salts with squaric acid and their characterization by IR and NMR spectroscopy is present