Butylamine → HCID 86746681, compound

Participants

Reaction Steps

To a 1 L flask under Argon was added CuI (7.86 g, 41.2 mmol) and Pd(PPh3)4 (5 g, 4.3 mmol). The catalyst was covered with 600 mL of degassed THF, cis-1,2-dichloroethylene (50 g, 516 mmol), and butylamine (68 mL, 688 mmol). Phenoxy-2-propyne (45 g, 340 mmol) was added neat over 10 min and the reaction mixture stirred for 5.5 h. Air was bubbled through the reaction mixture for 15 min and the reaction filtered through a pad of celite and washed with pentane. The filtrate was washed with water and brine and the aqueous fractions extracted with ether. The organic fractions were combined, dried (MgSO4), filtered through celite and concentrated. The residue was chromatographed over silica gel (hexane) to give 44.3 g of a yellow oil (67%).

Provenance & Evidence