| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a tolan derivative as a material suitable for making non-linear optical elements, electric optical elements, and piezoelectric elements. <P>SOLUTION: The tolan derivative is a compound represented by formula (I) [R<SP>1</SP>and R<SP>2</SP>are each independently H, a 1 to 20C alkyl, R<SP>3</SP>-Ar-(R<SP>3</SP>is H, a 1 to 20C alkyl, or the like; Ar is a 6 to 10C aryl or a 5 to 10C heteroaryl); R<SP>1</SP>and R<SP>2</SP>may be bound to each other to form a ring; R<SP>1</SP>and R<SP>2</SP>are each an alkyl; when R<SP>3</SP>is an alkyl, an alkoxy, an alkylthio, or the like, the alkyl, the alkoxy, the alkylthio, or the like may have OH, amino or a cross-linkable substituent; R<SP>4</SP>is H, a 1 to 6C alkyl, or the like; R<SP>5</SP>is H or a 1 to 6C alkyl; E is ethylene having several electron-attracting groups]. <P>COPYRIGHT: (C)2004,JPO</p> |
