| abstract |
The conventional reverse photochromic compound is difficult to perceive light in the visible light range of 600 nm or more used in medical applications and the like. Therefore, an object of the present invention is to provide a reverse photochromic compound and polymer having high sensitivity to light of 600 nm or more. The present invention relates to a compound represented by the following general formula (1). (Wherein R 1 and R 4 each independently represent a hydrogen atom, etc., R 2 , R 3 and R 5 each independently represent an alkyl group, etc., and R 6 represents a group having a polymerizable unsaturated group, a carboxyl group, and an alkoxy group. Carbonyl, etc., R 31 and R 32 each independently represent an alkoxy group, etc., R 33 and R 34 each independently represent a hydrogen atom, etc., Y 1 represents an oxygen atom or a sulfur atom, An - represents an anion, and n 1 to n 3 represent Specific integers, which can form an alkylene group by R 1 and R 2 , R 3 and R 4 and / or R 33 and R 34 ) |