PHOTOCHROMIC BEHAVIOR OF BIS[4-(N,N-DIMETHYLAMINO)PHENYL]-SUBSTITUTED3H-NAPHTHO[2,1-B]PYRAN AND 2H-1-BENZOPYRAN

Citation
G. Harie et al., PHOTOCHROMIC BEHAVIOR OF BIS[4-(N,N-DIMETHYLAMINO)PHENYL]-SUBSTITUTED3H-NAPHTHO[2,1-B]PYRAN AND 2H-1-BENZOPYRAN, Tetrahedron letters, 38(17), 1997, pp. 3075-3078
Citations number
12
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
ISSN journal
00404039
Volume
38
Issue
17
Year of publication
1997
Pages
3075 - 3078
Database
ISI
SICI code
0040-4039(1997)38:17<3075:PBOB>2.0.ZU;2-4
Abstract
The photochromic behaviour of -(N,N-dimethylamino)phenyl]-3H-naphtho[2 ,1-b]pyran (2) and 2-bis[4-(N,N-dimethylamino)phenyl]-2H-1-benzopyran (3) has been studied by flash photolysis and compared to 3,3-diphenyl- 3H-naphtho[2,1-b]pyran (1) in order to delineate effects due to the N, N-dimethylamino groups. (C) 1997 Elsevier Science Ltd.