Photoinduced Acylotropic Rearrangement of Crown-Containing 2-[N-Acetyl-N-(4-aminobenzo-15-crown-5)methylene]-2,3-dihydrobenzo[b]thiophen-3-one View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2001-07

AUTHORS

V. P. Rybalkin, A. D. Dubonosov, E. N. Shepelenko, L. L. Popova, V. A. Bren', V. I. Minkin

ABSTRACT

2-N-(4-Aminobenzo-15-crown-5)methylene-2,3-dihydrobenzo[b]thiophen-3-one and its acetyl derivative were synthesized. Their treatment with lithium, sodium, or potassium iodide in acetonitrile solution leads to formation of the corresponding crown-metal complexes. Irradiation of the acylated compounds at λ 436 nm induces NO migration of the acetyl group to give O-acyl isomer which is characterized by a considerable blue shift of the long-wave absorption band (Δλ = 70 nm). The quantum yields of the photo- induced acylotropic reaction for the free ligand and its complexes with alkali metal cations change in the series: ϕL > ϕK+ > ϕNa+ > ϕLi+. More... »

PAGES

1034-1037

Identifiers

URI

http://scigraph.springernature.com/pub.10.1023/a:1012495020706

DOI

http://dx.doi.org/10.1023/a:1012495020706

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1005980282


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