Chiral photochromic 2-(N-acyl-N-arylaminomethylene)benzo[b]thiophen-3(2H)-ones View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2003-08

AUTHORS

V. P. Rybalk, E. N. Shepelenko, Ya. Yu. Vorob'eva, G. S. Borodk, V. A. Bren', V. I. Mink, S. M. Aldosh, V. V. Tkachev, A. N. Utenyshev

ABSTRACT

Photochromic 2-(N-acyl-N-arylaminomethylene)benzo[b]thiophen-3(2H)-ones containing ortho-substituents in the N-phenyl ring were studied by X-ray diffraction analysis and 1H NMR spectroscopy. It was established that these compounds have stable chiral structures due to hindered rotation of the phenyl ring around the C—N bond. The energy barrier to racemization evaluated by dynamic NMR spectroscopy is ΔG#428 K = 98 kJ mol–1. More... »

PAGES

1800-1806

Identifiers

URI

http://scigraph.springernature.com/pub.10.1023/a:1026148506677

DOI

http://dx.doi.org/10.1023/a:1026148506677

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1047693091


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