Photochromic Dihetarylethenes: XX. Synthesis and Photochromic Properties of Dithienylethenes with a Fixed Conformation |
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| Authors: | Krayushkin M. M. Ivanov S. N. Lichitskii B. V. Dubinov A. A. Vorontsova L. G. Starikov Z. A. Martynkin A. Yu. |
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| Affiliation: | (1) Zelinskii Institute of Organic Chemistry, Russian Academy of Sciences, Leninskii pr. 47, Moscow, 119991, Russia;(2) Nesmeyanov Institute of Organometallic Compounds, Russian Academy of Sciences, Moscow, Russia |
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| Abstract: | >A procedure was developed for the synthesis of bis(2,5-dimethyl-3-thienyl)ethenes with partially fixed molecular conformation, and their photochromic properties in solution were studied. The structure of photochromic 1-(2,5-dimethyl-3-thienyl)-7,9-dimethyl-5,6-dihydrothieno[3',4' : 3,4]pyrido[1,2-c][1,3]oxazol-3-one, as well as of 1-(2,5-dimethyl-3-thienyl)-7,9-dimethylthieno[3',4' : 3,4]pyrido[1,2-c][1,3]oxazol-3-one possessing no photochromic properties, was determined by X-ray analysis. |
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