| abstract |
The compound that formula (1) below indicates has absorption maximum in the range of wavelength 350nm~510nm, is the new compound that functions as dichroism pigment.In formula (1), R 1 Indicate hydrogen atom, alkyl of carbon atom number 1~20 etc., R 2 ~R 4 For the substituent group other than hydrogen atom, the alkyl etc. of carbon atom number 1~4 is each independently represented, n, m, p are each independently 0~2 integer, Ar 1 Indicate that N is bonded to 5~8 yuan of nitrogenous saturated heterocyclyl on phenylene, at least one β of the nitrogenous saturated heterocyclyl is oxygen atom or sulphur atom. |