Chinese Journal of Applied Chemistry ›› 1987, Vol. 0 ›› Issue (2): 71-73.
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Li Zhongjie, Dong Yigong
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Abstract: The title compounds(Ⅲa, R1=H, R2=NO2, Ⅲb, R1=NO2,R2=H, Ⅲc,R1=Cl,R2=NO2,Ⅲb, R1=Br,R2=NO2, Ⅲc, 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 Ⅲa-c Compounds Ⅲa and Ⅲc-e are found to be good photochromic reagents.
Li Zhongjie, Dong Yigong. SYNTHESIS AND PHOTOCHROMIC PROPERTIES OF SOME 1-OCTYL-3,3-DIMETHYLINDOLINOSPIROPYRANS[J]. Chinese Journal of Applied Chemistry, 1987, 0(2): 71-73.
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