Synthesis and reactions of 2-(dimethylaminomethylidene)-6-methoxynaphto[1,8-<Emphasis Type="Italic">bc</Emphasis>]pyran-3-one |
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| Authors: | O M Golyanskaya N A Voloshin A V Chernyshev A D Dubonosov A V Metelitsa V V Mezheritskii V A Bren’ |
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| Institution: | (1) Institute of Physical and Organic Chemistry, Southern Federal University, pr. Stachki 194/2, Rostov-on-Don, 344090, Russia;(2) Southern Research Center, Russian Academy of Sciences, ul. Chekhova 41, Rostov-on-Don, 344006, Russia |
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| Abstract: | The reaction of 6-methoxynaphthol1,8-bc]pyran-3-one with dimethylformamide dimethyl acetal gave the corresponding 2-dimethylaminomethylidene derivative which reacted with amines to form new 2-aminomethylidene-6-methoxynaphtho1,8-bc]pyran-3-ones via replacement of the dimethylamino group. 2-Dimethylaminomethylidene-6-methoxynaphtho1,8-bc]pyran-3-one also reacted with 2,3-dimethylchromenium perchlorate and 1,2,3,3-tetramethyl-3H-indolium perchlorate to give the corresponding merocyanine dyes. The latter were examined for chemosensor and photochromic properties. |
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