Benzenoid-quinoid tautomerism of azomethines and their structural analogs. 42. Synthesis, structures, and spectral-luminescence properties of 3-hydroxy-2-acetylbenzo[b]thiophene imines View Full Text


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Article Info

DATE

1989-05

AUTHORS

E. N. Shepelenko, V. A. Bren', A. D. Dubonosov, A. É. Lyubarskaya, V. I. Minkin

ABSTRACT

N-Aryl- and N-alkylimines of 3-hydroxy-2-acetylbenzo[b]-thiophene, the most stable isomeric form of which, according to the UV, IR, and 1H NMR spectra data, is the E-keto enamine structure, were synthesized. Irradiation of the aminovinyl ketones in the region of the long-wave absorption band causes thermally and photochemically reversible E⇄Z isomerization. 2-Aminoethylidene-3-(2H)-benzo[b]thiophenones have low-intensity fluorescence with a normal Stokesian shift, which is absent in solutions of their lithium and sodium salts. More... »

PAGES

489-493

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/bf00482489

DOI

http://dx.doi.org/10.1007/bf00482489

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1006741353


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