Toluene → 1-Butene

Participants

Reaction Conditions

Reaction Steps

Catalysis was conducted in a 75 ml stainless steel autoclave equipped with an addition funnel, gas inlet valve and a magnetic stirrer bar. The addition funnel was charged with 0.0044 g (0.0108 mmol) of CrCl3(bis-(2-diethylphosphino-ethyl)-amine) dissolved in 20 ml of toluene and to the base of the autoclave was added 5 ml of 1.5M MAO solution in toluene. Over 20 minutes the base of the autoclave was heated to 100° C., after which time the reactor was charged with ethylene to a pressure of 40 bar and the addition funnel was opened such that the Cr complex solution was allowed to mix with the MAO solution. After 30 minutes at a constant ethylene pressure of 40 bar the reaction was stopped by cooling the autoclave to 0° C. and releasing excess ethylene. The gas released was collected and analysed by gas-chromatography (GC). The liquid contained in the autoclave was quenched with ethanol followed by 10% hydrochloric acid, and 1.000 ml of nonane was added as a GC internal standard. The reaction yielded 0.063 g polyethylene, 0.04 g butene, 8.67 g 1-hexene and 0.10 g other hexene isomers.

Provenance & Evidence