Steric and electronically biasing substituent effects on the Photoreversibility of novel, 3′-, 5′- and 3-substituted indolospirobenzopyrans. Thermal evaluation using 1H NMR spectroscopy and Overhauser enhancement studies

Dyes and Pigments

Volumn 83, Issue 1, 2009, Pages 31-50

  Roxburgh, Craig J ^a   Sammes, Peter G ^b   Abdullah, Ayse ^b  

^a UNIVERSITY COLLEGE LONDON   (United Kingdom)

^b UNIVERSITY OF SURREY   (United Kingdom)

Author keywords

1H NMR spectroscopy and nOe studies; Spirobenzopyrans; Steric electronic substituent control; Synthesis

Indexed keywords

1H NMR SPECTROSCOPY AND NOE STUDIES; H NMR SPECTROSCOPY; NUCLEAR OVERHAUSER ENHANCEMENT; PHOTOREVERSIBILITY; RING OPENING; SPIROBENZOPYRANS; SPIROPYRAN; STERIC/ELECTRONIC SUBSTITUENT CONTROL; STRUCTURAL COMBINATION; SUBSTITUENT EFFECT; SYNTHESIS; TEMPERATURE INTERVALS; THERMAL EVALUATIONS; THERMO-CHROMIC;

NUCLEAR MAGNETIC RESONANCE; SYNTHESIS (CHEMICAL);

NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY;

CHEMICAL ANALYSIS; CHEMICAL REACTION; INORGANIC COMPOUND; SYNTHESIS;

EID: 66049127576     PISSN: 01437208     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.dyepig.2009.03.017     Document Type: Article

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