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Citation: Li Zhongjie, Dong Yigong. SYNTHESIS AND PHOTOCHROMIC PROPERTIES OF SOME 1-OCTYL-3,3-DIMETHYLINDOLINOSPIROPYRANS[J]. Chinese Journal of Applied Chemistry, ;1987, 4(2): 71-73. shu

SYNTHESIS AND PHOTOCHROMIC PROPERTIES OF SOME 1-OCTYL-3,3-DIMETHYLINDOLINOSPIROPYRANS

Li Zhongjie ^, ,
Dong Yigong

1.
Department of Chemistry, Northwest University, Xi'an

Corresponding author: Li Zhongjie,
Received Date: 1 April 1986
Available Online: 23 September 1986

The title compounds(Ⅲ_a, R₁=H, R₂=NO₂, Ⅲ_b, R₁=NO₂,R₂=H, Ⅲ_c,R₁=Cl,R₂=NO₂,Ⅲ_b, R₁=Br,R₂=NO₂, Ⅲ_e, R₁=R₂=NO₂) were prepared by condensation of 1-octyl-3,3-dimethyl-2-methyleneindoline (Ⅰ) and substituted salicylaldehydes (Ⅱ) in anhydrous ethanol. Photochromic properties of these compounds were investigated by UV/VIS spectra measurement and photochromic film obtained from Ⅲ_a-e Compounds Ⅲ_a and Ⅲ_c-e are found to be good photochromic reagents.
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