Patent ID: 7901594

Claim:
A polyacene derivative represented by general formula (I) below: wherein each of R 3 , R 5 , R 6 , R 7 , R 8 and R 10 , which may be the same or different, independently represents hydrogen atom; a C 1 -C 40 hydrocarbon group which may optionally be substituted; a C 1 -C 40 alkoxy group which may optionally be substituted; a C 6 -C 40 aryloxy group which may optionally be substituted; an amino group which may optionally be substituted; a hydroxy group; or a silyl group which may optionally be substituted; provided that R 6 and R 7 may be cross-bridged with each other to form a C 4 -C 40 saturated or unsaturated ring, and the saturated or unsaturated ring may be intervened by oxygen atom, sulfur atom or a group shown by formula: —N(R 11 )— wherein R 11 is hydrogen atom or a hydrocarbon group, or may optionally be substituted; each of R 1 and R 2 , which may be the same or different, independently represents a C 1 -C 40 alkyl group which may optionally be substituted, or a C 6 -C 18 aryl group which may optionally be substituted; each of R 4 and R 9 , which may be the same or different, independently represents a C 1 -C 40 alkyl group, or a C 6 -C 18 aryl group which may optionally be substituted; each of A 1 and A 2 , which may be the same or different, independently represents a C 2 -C 40 alkoxycarbonyl group which may optionally be substituted; n is 1; with proviso that the case of (b) below is excluded: (b) R 3 , R 4 , R 9 and R 10 are all aryl groups that may optionally be substituted.