Dimethylformamide → HCID 66823081, compound

Participants

Reaction Steps

The synthesis of 2,5-di-n-butyl-3,6-bis(5-bromo-thiophen-2-yl)pyrrolo[3,4-c]-pyrrole-1,4-dione is described in Zhou et al., Macromolecules 43 (2010) 821-826. 2,5-Di-n-butyl-3,6-bis(5-bromo-thiophen-2-yl)pyrrolo[3,4-c]-pyrrole-1,4-dione (1.08 g, 1.89 mmol) and copper(I)-cyanide (4.00 g, 44.6 mmol) in dry DMF (15 mL) are heated under argon at 130° C. for 315 min and at 165° C. for 40 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 333 mg (38%) of a dark violet solid.

Provenance & Evidence