Dimethylformamide → HCID 66822730, compound

Participants

Reaction Steps

The synthesis of 2,5-di-n-pentyl-3,6-bis(5-bromo-thiophen-2-yl)pyrrolo[3,4-c]-pyrrole-1,4-dione is done in analogy to Zhou et al., Macromolecules 43 (2010) 821-826. 2,5-Di-n-pentyl-3,6-bis(5-bromo-thiophen-2-yl)pyrrolo[3,4-c]-pyrrole-1,4-dione (600 mg, 1.00 mmol) and copper(I)-cyanide (1.60 g, 18.0 mmol) in dry DMF (15 mL) are heated under argon at 120° C. for 60 min and at 165° C. for 80 min. The solvent is removed under reduced pressure and the crude product continuously extracted from the reaction mixture with chloroform. The extract is purified by column chromatography (dichloromethane) and washed with hexane affording 64.0 mg (13%) of a dark violet solid.

Provenance & Evidence