1. Thirteen new compounds of the alkyl styryl indoline spirobenzopyrans were synthesized from the condensation of 2-methylene indoline with the designed salicylaldehyde.
   利用2-亚甲基吲哚啉和取代水杨醛缩合得到十三种新的烷基苯乙烯基吲哚啉螺苯并吡喃。Thirteen new compounds of the alkyl styryl indoline spirobenzopyrans were synthesized from the condensation of 2-methylene indoline with the designed salicylaldehyde.
   利用2-亚甲基吲哚啉和取代水杨醛缩合得到十三种新的烷基苯乙烯基吲哚啉螺苯并吡喃。

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