Non-Symmetric Bispyrrolotetrathiafulvalene Building Blocks.

Keywords: tetrathiafulvalene; pyrrole; orthogonal building block; Sonogashira- coupling; alkylation EN tetrathiafulvalene pyrrole orthogonal building block Sonogashira- coupling alkylation 2019 2026 8 06/16/23 20230704 NES 230704 Tetrathiafulvalene (TTF, B 1 b ) and its derivatives (Figure 1) have been extensively investigated for half a century. The residue was purified by column chromatography (50 mL SiO SB 2 sb , deact. with 1% Et SB 3 sb N, 3 cm , eluent: CH SB 2 sb Cl SB 2 sb /EtOAc (9:1->4:1)). The crude product was purified by column chromatography (125 mL SiO SB 2 sb , deact. with 1% Et SB 3 sb N, 5 cm , eluent: CH SB 2 sb Cl SB 2 sb /PE (2:1)). The residue was purified by column chromatography (25 mL SiO SB 2 sb , deact. with 1% Et SB 3 sb N, 3 cm , eluent: PE/CH SB 2 sb Cl SB 2 sb (2:1 -> 1:1)). [Extracted from the article]