【摘要】 <正> 取代的吲哚啉螺苯并吡喃具有光致变色性质,在光信息显示和记录等现代技术领域已取得初步应用。以往的工作表明,这类化合物的光致变色性质与分子中的取代基有密切关系。氮上有长链烷基的吲哚啉螺苯并吡喃已有报道。我们曾考察过Ⅲ_a(R₁=H,更多还原

【Abstract】 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_?, R₁ = R₂ = NO₂） were prepared by condensation of 1-octyl-3,3-dimethyl-2-methyleneindoline （Ⅰ） and substituted salicylaldehydes （Ⅱ） in anhydrousethanol. Photochromic properties of these compounds were investigated by UV/VIS spectrameasurement and photochromic film obtained from Ⅲ_{a -?} Compounds Ⅲ_a and Ⅲ_c-? arefound to be good photochromic reagents.更多还原