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Autor:
Vladimir I. Minkin, Anatoly V. Metelitsa, O. G. Nikolaeva, V. V. Ivanitsky, V. A. Palchkov, M. I. Knyazhansky, A. P. Panina, N. E. Shelepin
Publikováno v:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals. 246:37-40
Novel spiropyrans on the base of 4-methyl-7-hydroxy-8-formylcoumarine (I) and 7-R-4-hydroxy-3-formylcoumarine (II) are synthesized. The compounds (I) and (II) exhibit in solution respectively direct and inverse photochromic reaction. The influence of