PURPOSE: To provide a new α-cyanocinnamic acid ester compound greatly high in a SHG effect, important as an organic nonlinear optical material excellent in transparency, and also important as a color-generating material and a laser dyestuff because of generating large fluorescent light.
CONSTITUTION: A compound of formula I (D is group of formula II-V; R is CH3, C2H5, C3H7, C4H9) e.g. methyl α-cyano-p-[(R)-2- phenylpropylamido]cinnamate. The compound is obtained by reacting an optically active carboxylic acid with methyl α-cyano-p-aminocinnamate which is synthesized by the condensation reaction of methyl cyanoacetate with p- aminobenzaldehyde. The compound is characterized by having the same ultra- molecular degree of polarization (β) as 2-methyl-4-nitroaniline which is a typical nonlinear optical material and simultaneously by having excellent transparency.
HAYASHI HIDEKI
NAKATANI HIROYUKI
