Abstract: 17 indolinospirobenzopyran compounds were synthesized through the reaction of TTOI with salicylic aldehyde derivatives, 8 of them have not been reported in literature. In study the compounds were devided into two groups: A-compounds without nitrogroup and B-compounds which have NO₂ in molecule. The results showed that compounds of group A in general can not be purified from its alcoholic solution, while compounds of group B are easily precipited from alcohol solution with metal lustre and show a better photochromic property. A number of polymers have been tested for coatings for compounds of group B, all of them were bad in photochromism, except polyvinyl butyral.