Chin. J. Org. Chem. ›› 1987, Vol. 7 ›› Issue (2): 123-127. Previous Articles     Next Articles

光(热)致变色剂:单和双吲哚啉螺苯并吡喃

刘瑞蓝;王答琪;赵富中;邓福喜;杨海涛   

  1. 西北大学化学系
  • 发布日期:1987-04-25

Photo-and thermo-chromic agents:Mono- and bis-indolinospirobenzopyrans

LIU RUILAN;WANG DAQI;ZHAO FUZHONG;DENG FUXI;YANG HAITAO   

  • Published:1987-04-25

Spiro compounds I [R, R1 = NO2, H(II); H, NO2(III)] were prepared by reaction of 2,3,3-trimethyl-N-(b-hydroxyethyl)indolium iodide with 3- or 5-nitrosalicylaldehyde in the presence of piperidine. To I addition of Ph isocyanate gave monospiro isomers IV [R, R1 = NO2, H(V); H, NO2(VI)] and addition of toluene-2,4-diisocyanate gave VII. II, V, and VII are photochromic compounds, while III and VI are thermochromic compounds

Key words: INDOLE P, ETHANOL, BENZOPYRAN P, SPIRO COMPOUNDS, PIPERIDINE, PHOTOCHROMISM, THERMOCHROMISM

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