A kind of method of butene hydroformylation synthetic valeraldehyde
A technology for the synthesis of valeraldehyde and butene by hydroformylation of butene, which is applied in the fields of chemical instruments and methods, carbon monoxide reaction preparation, organic compound/hydride/coordination complex catalyst, etc., which can solve the difficulty of separating catalyst and product, low activity and selectivity
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Embodiment 1
[0027] Under 298K and inert gas protection atmosphere, 0.05gRh(acac)(CO) 2 Dissolve in 100ml tetrahydrofuran solvent, add 1g tris(4-vinylphenyl) phosphine, stir the polymer at 298K and an inert gas atmosphere for 24h, then vacuum the solvent at 333K to obtain Organic polymer-supported heterogeneous catalyst for hydroformylation, denoted as 2%Rh / POL-PPh 3 .
Embodiment 2
[0029] Under 298K and inert gas protection atmosphere, 0.0035gRh(acac)(CO) 2 Dissolve in 75ml tetrahydrofuran solvent, add 1g tris(4-vinylphenyl) phosphine, stir the polymer at 298K and an inert gas atmosphere for 24h, then vacuum the solvent at 333K to obtain Organic polymer-supported heterogeneous catalyst for hydroformylation, denoted as 0.125% Rh / POL-PPh 3 .
Embodiment 3
[0031] Under 298K and an inert gas protection atmosphere, 10.0 grams of Vinyl Biphephos monomer (attached figure 1 ) was dissolved in 100.0ml tetrahydrofuran solvent, and 2.5g comonomer tris (4-vinylphenyl) phosphine (L1) was added simultaneously; Hour. The stirred solution was moved to an autoclave, and polymerized by solvothermal polymerization at 373K and an inert gas atmosphere for 24 hours. After the above polymerized solution is cooled to room temperature, the solvent is removed under vacuum at room temperature to obtain an organophosphine mixed polymer carrier copolymerized with Vinyl Biphephos and tris(4-vinylphenyl)phosphine organic monomer. figure 2 It is a schematic diagram of Vinyl Biphephos organic mixed polymer carrier polymerization technology route. Take by weighing 3.13 milligrams of tricarbonyl rhodium acetylacetonate and be dissolved in 10.0 ml of tetrahydrofuran solvent, add 1.0 gram of organic mixed polymer carriers obtained by copolymerization of Vinyl...
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