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Photochromism of Synthetic and Naturally Occurring 2H-Chromenes and 2H-Pyrans

โœ Scribed by Becker, Ralph S.; Michl, J.


Book ID
120165107
Publisher
American Chemical Society
Year
1966
Tongue
English
Weight
380 KB
Volume
88
Category
Article
ISSN
0002-7863

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Photochromic Properties of New Benzoinde
โœ Cristinaโ€…I. Martins; Pauloโ€…J. Coelho; Luisโ€…M. Carvalho; Anaโ€…M.โ€…F. Oliveira-Campo ๐Ÿ“‚ Article ๐Ÿ“… 2003 ๐Ÿ› John Wiley and Sons ๐ŸŒ German โš– 144 KB

## Abstract The synthesis and the photochromic properties of new photochromic 6,7โ€ and 7,8โ€benzoindene annellated benzopyrans are described. When compared to parent indenoโ€fused 2__H__โ€chromenes (2__H__โ€[1]benzopyrans), compounds **10** and **12** exhibit a significant bathochromic shift of maximum