1,3-Butadiene → HCID 21277036, compound

Participants

Reaction Steps

A catalyst solution consisting of 0.019 g Rh(CO)2 (acac) (300 ppm rhodium), 0.99 g Ligand A (14:1 Ligand A to rhodium ratio), 2.2 g N-methylpyrrolidone (as an internal standard), 2 mL 1-hexene, and 25 mL tetrahydrofuran was charged to a 100 mL Parr reactor. Butadiene (2 mL) was charged to the reactor as a liquid under pressure. The reaction was pressurized to 500 psi with 1:1 CO:H2. The reaction rate for 1-hexene and butadiene was determined by monitoring 1-hexene conversion and the formation of butadiene hydroformylation products by gas chromatography. After 20 minutes of reaction, 1-hexene was found to be 84% converted, corresponding to a rate of 1.39 mol/1-hr. Butadiene hydroformylation proceeded at a rate of 1.0 mol/1-hr. After two hours of reaction the solution was analyzed by gas chromatography to determine product composition. Butadiene was 96% converted. The oxo products consisted of 0.7 g valeraldehyde, 0.1 g pentenals, 0.1 g branched dialdehyde, 0.2 g adipaldehyde, and 1.8 g heptanal.

Provenance & Evidence