| 摘要 |
PROBLEM TO BE SOLVED: To provide a tetraazaporphyrin compound excellent in light resistance, and a color correction filter and an external light correction filter containing the same.SOLUTION: There is provided a tetraazaporphyrin compound which is a mixture of 4 kinds of isomers obtained by heat cyclization reaction of a metal or a metal derivative with a cis body of 1,2-dicyanoethylene compound represented by the following formula (6) (4 molar) in an alcohol solvent the coexistence of an organic basic. In the formula (6), one of two substitutions Zand Zis a cyclic alkyl group which may have a substituent and the other is an aryl group which may have a substituent. |
