PHOTO- AND THERMOCHROMIC SPIRANES. 24*. NOVEL PHOTOCHROMIC SPIROPYRANS FROM 2,4-DIHYDROXYISOPHTHALALDEHYDE
DOI:
https://doi.org/10.1007/7959Keywords:
2, 4-dihydroxyisophthalaldehyde, benzoxazinone, indoline, spiropyran, photochromismAbstract
Novel series of photochromic indoline and benzoxazine spiropyrans containing ortho-placed formyl and hydroxyl groups in the benzene ring of the chromene part of the molecule have been prepared. X-ray analysis has shown that, depending on the structure of the heterocyclic component in the spiro cyclization reaction different, nonequivalent formyl groups of 2,4-dihydroxyisophthalaldehyde can participate. The synthesized compounds were used as original analogs of salicylaldehyde. The novel photochromic bispyropyrans prepared contain two different asymmetric spiro carbon atoms.How to Cite
Alekseenko, Yu. S.; Lukyanov, B. S.; Utenyshev, A. N.; Mukhanov, E. L.; Kletskii, M. E.; Tkachev, V. V.; Kravchenko, N. N.; Minkin, V. I.; Aldoshin, S. M. Chem. Heterocycl. Compd. 2006, 42, 803. [Khim. Geterotsikl. Soedin. 2006, 919.]
For this article in the English edition see DOI 10.1007/s10593-006-0165-4