HCID 22556140, compound → HCID 22556139, compound

Participants

Reaction Steps

Bis{6-[4-biphenyloxy]hexyl}4,4′-dinitro-2,2′-biphenyldicarboxylate (8) (2.26 g, 2.70 mol), palladium on activated carbon (5%, 0.31 g), and tetrahydrofuran (50 ml) were added to a hydrogenation bottle. The bottle was secured on a Parr hydrogenation apparatus, flushed five times with hydrogen, then pressurized with hydrogen to 56 psi. The pressure was maintained and the vessel was agitated for 24 hours. After the reaction mixture was filtered and about 100 ml of hexanes were added to recrystallize the products directly to afford 1.7 g (80%) of light yellow crystals. mp: 122-124° C. 1H-NMR (CDCl3) δ (ppm) 1.2-1.8 (m, 16H), 3.9 (m, 8H), 6.8-7.6 (m, 24H).

Provenance & Evidence