Thiophenes and polythiophenes, their preparation and their use

Details Thiophenes and polythiophenes, their preparation and their use Thiophenes and polythiophenes, their preparation and their use

C - Chemistry, Metallurgy

07

D

C07D 333/34 (2006.01) A01N 43/10 (2006.01)

Patent

CA 2123324

2123324 9314079 PCTABS00024 The invention concerns thiophenes and polythiophenes of formula (I), in which the substituents and the degree of polymerization n are as follows: R1, R2 and R3, independently of each other, are hydrogen or a C1-C18 alkylthio group; n is 1, 2, 3, 4 or 5 and the R3 groups may be different when n > 1; with the exception that R1, R2 and R3 may not simultaneously be hydrogen and R1 may not be hydrogen when R2 is methylthio and n is 0.

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