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LXXIX.—Dyes derived from acenaphthenequinone. Part II. Azine and azonium derivatives

✍ Scribed by Guha, Sisir Kumar


Book ID
120297962
Publisher
The Royal Society of Chemistry
Year
1931
Weight
325 KB
Volume
0
Category
Article
ISSN
0368-1769

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✍ 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