Tetrahedron Letters p. 3075 - 3078 (1997)
Update date:2022-08-04
Topics:
Harie, Guenaelle
Samat, Andre
Guglielmetti, Robert
De Keukeleire, Denis
Saeyens, Wim
Van Parys, Inge
The photochromic behaviour of 3,3-bis[4-(N,N-dimethylamino)phenyl]-3H-naphtho[2,1 -b]pyran (2) and 2,2-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 (i) in order to delineate effects due to the N,N-dimethylamino groups.
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