Photo- and thermochromic spiropyrans 42. The effect of structural factors on the photochromic properties of indolinospiropyrans containing a condensed furan fragment

Photo- and thermochromic spiropyrans 42. The effect of structural factors on the photochromic properties of indolinospiropyrans containing a condensed furan fragment

Syntheses are reported for a series of N-substituted indolinospiropyrans containing a fused furan fragment in the benzopyran part of the molecule. The structure of these compounds was established by IR and multinuclear NMR spectroscopy. A study was carried out on the effect of the fused benzene ring...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Chemistry of heterocyclic compounds (New York, N.Y. 1965) N.Y. 1965), 2014-08, Vol.50 (5), p.734
Hauptverfasser: Tyurin, R.V, Lukyanov, B.S, Chernyshev, A.V, Borodkin, G.S, Khalanskii, K.N, Chepeleva, L.V, Lukyanova, M.B
Format: Artikel
Sprache:eng
Schlagworte:
Isomerization
Nitrogen
Nuclear magnetic resonance spectroscopy
Thiophene
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Syntheses are reported for a series of N-substituted indolinospiropyrans containing a fused furan fragment in the benzopyran part of the molecule. The structure of these compounds was established by IR and multinuclear NMR spectroscopy. A study was carried out on the effect of the fused benzene ring and bulky N-benzyl substituent on the photochromic properties of these compounds in solution and in a polymer matrix. Dynamic NMR spectroscopy was used to study the thermally induced isomerization of the N-benzyl derivative. Keywords: furo[3,2-f]chromene, indolinospiropyrans, multinuclear NMR spectroscopy, photochromism, photoisomerization.
ISSN:0009-3122