The synthesis and electronic absorption spectra of 3-phenyl-3(4-pyrrolidino-2-substituted phenyl)-3H-naphtho[2,1-b]pyrans:: further exploration of the ortho substituent effect

被引：33
|
作者：
Gabbutt, CD [1 ]
Heron, BM [1 ]
Instone, AC [1 ]
机构：
[1] Univ Leeds, Dept Colour & Polymer Chem, Leeds LS2 9JT, W Yorkshire, England
来源：
TETRAHEDRON | 2006年 / 62卷 / 04期
关键词：
naphthopyrans; photochromism; steric effects; dual absorption hands; synthesis;
D O I：
10.1016/j.tet.2005.09.143
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
Introduction of a substituent into a sterically demanding 2-position of a 3-(4-pyrrolidinophenyl) ring of a 3,3-diaryl-3H-naphtho[2,1-b]pyran results in the generation of an additional short wavelength absorption band leading to organic photochromes that appear as dull shades of orange and red. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码：737 / 745
页数：9
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