Unsaturated alkyl bicyclic guanidine as well as preparation method and application of unsaturated alkyl bicyclic guanidine
An unsaturated, bicyclic guanidine technology, applied in chemical instruments and methods, physical/chemical process catalysts, organic compound/hydride/coordination complex catalysts, etc., can solve the problems of single bicyclic guanidine structure and low catalytic activity, etc. Achieving the effects of good catalytic activity, simple synthesis method and novel structure
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Embodiment 1
[0024] Example 1 This example provides the preparation of unsaturated hydrocarbon-based bicyclic guanidine: 1.5 g of bis(2-vinylpropylene) triamine is mixed with 0.8 g of CS in 150 ml of p-xylene solution at 40° C. 2 React for 6h; then heat and reflux at 50°C for 10h; finally remove two molecules of H 2 S rings to form β,β′-tetraethenyl-1,5,7-triazabicyclo[4.4.0]dec-5-ene.
Embodiment 2
[0025] Example 2 This example provides the preparation of unsaturated hydrocarbon-based bicyclic guanidine: 1.5 g of bis(2-propenylpropylene) triamine is mixed with 0.8 g of CS in 150 ml of p-xylene solution at 45° C. 2 Reaction for 7h; then heated to reflux at 60°C for 16h; finally, two molecules of H 2 S rings to form β,β′-tetrapropenyl-1,5,7-triazabicyclo[4.4.0]dec-5-ene.
Embodiment 3
[0026] Example 3 This example provides the step of surface modification of cellulose catalyzed by unsaturated hydrocarbon-based bicyclic guanidine: dissolving cellulose in water to make a film, and coating it on a glass slide to make a film with a thickness of 13 μm. The dimer of 1-vinylpyrrolidone and 2-dimethylaminoethyl methacrylate and β,β′-tetravinyl-1,5,7-triazabicyclo[4.4.0]decane-5- Alkene was dissolved in acetonitrile solution with a mass ratio of 5:1 and coated on cellulose film with a thickness of 1 μm. Post bake at 100°C for 5 min. Finally, rinse with tetrahydrofuran for 10 min. The water contact angle of the cellulose surface before modification was 45°, and the water contact angle after modification was 83°.
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