Patent ID: 8367717

Claim:
A dithienobenzodithiophene of general formula (I) where R′ to R″ are each independently selected from the group consisting of a) H, b) halogen, c) —CN, d) —NO 2 , e) —OH, f) a C 1-20 alkyl group, g) a C 2-20 alkenyl group, i) a C 1-20 alkoxy group, j) a C 1-20 alkylthio group, k) a C 1-20 haloalkyl group, l) a —Y—C 3-10 cycloalkyl group, m) a —Y—C 6-14 aryl group, n) a —Y-3-12 membered cycloheteroalkyl group, and o) a —Y-5-14 membered heteroaryl group, wherein each of the C 1-20 alkyl group, the C 2-20 alkenyl group, the C 3-10 cycloalkyl group, the C 6-14 aryl group, the 3-12 membered cycloheteroalkyl group, and the 5-14 membered heteroaryl group is optionally substituted with 1-4 R 7 groups, R 1 and R 3 and R 2 and R 4 may also together form an aliphatic cyclic moiety, R 7 is independently selected from the group consisting of a) halogen, b) —CN, c) —NO 2 , d) oxo, e) —OH, f) —NH 2 , g) —NH(C 1-20 alkyl), h) —N(C 1-20 alkyl) 2 , i) —N(C 1-20 alkyl)-C 6-14 aryl, j) —N(C 6-14 aryl) 2 , k) —S(O) m H, l) —S(O) m —C 1-20 alkyl, m) —S(O) 2 OH, n) —S(O) m —OC 1-20 alkyl, o) —S(O) m —OC 6-14 aryl, p) —CHO, q) —C(O)—C 1-20 alkyl, r) —C(O)—C 6-14 aryl, s) —C(O)OH, t) —C(O)—OC 1-20 alkyl, u) —C(O)—OC 6-14 aryl, v) —C(O)NH 2 , w) —C(O)NH—C 1-20 alkyl, x) —C(O)N(C 1-20 alkyl) 2 , y) —C(O)NH—C 6-14 aryl, z) —C(O)N(C 1-20 alkyl)-C 6-14 aryl, aa) —C(O)N(C 6-14 aryl) 2 , ab) —C(S)NH 2 , ac) —C(S)NH—C 1-20 alkyl, ad) —C(S)N(C 1-20 alkyl) 2 , ae) —C(S)N(C 6-14 aryl) 2 , af) —C(S)N(C 1-20 alkyl)- C 6-14 aryl, ag) —C(S)NH—C 6-14 aryl, ah) —S(O) m NH 2 , ai)—S(O) m NH(C 1-20 alkyl), aj) —S(O) m N(C 1-20 alkyl) 2 , ak) —S(O) m NH(C 6-14 aryl), al) —S(O) m N(C 1-20 alkyl)-C 6-14 aryl, am) —S(O) m N(C 6-14 aryl) 2 , an) —SiH 3 , ao) —SiH(C 1-20 alkyl) 2 , ap) —SiH 2 (C 1-20 alkyl), aq) —Si(C 1-20 alkyl) 3 , ar) a C 1-20 alkyl group, as) a C 2-20 alkenyl group, at) a C 2-20 alkynyl group, au) a C 1-20 alkoxy group, av) a C 1-20 alkylthio group, aw) a C 1-20 haloalkyl group, ax) a C 3-10 cycloalkyl group, ay) a C 6-14 aryl group, az) a haloaryl group, ba) a 3-12 membered cycloheteroalkyl group, and bb) a 5-14 membered heteroaryl group, Y is independently selected from the group consisting of divalent a C 1-6 alkyl group, a divalent C 1-6 haloalkyl group, and a covalent bond; and m is independently selected from 0, 1, or 2.