| 摘要 |
NEW MATERIAL:A peptide having L(or D)-alanyl, L(or D)-valyl, L(or D)-p- nitrophenylalanyl, etc., expressed by the formula (R is methyl, isopropyl, p- dimethylaminobenzyl, etc.; X is H, benzyloxycarbonyl, tert-butyloxycarbonyl, etc., Y is Oh or methoxy; m and n are 0, 1 or 2, provided that ma and n are not 0 at the same time; 1<=m+b<=2) as structural units and nonlinear optical effects. USE:An organic nonlinear optical element useful as optical waveguides, etc., with hardly any coloring and applicable to optical transmission or data processing with light, etc., as a nonlinear optical element having light wavelength converting function. PREPARATION:The compound expressed by the formula is obtained by peptide synthesis, e.g. the dicyclohexylcarbodiimide method, etc. |
