Bicyclic guanidine salt eutectic solvent catalyst as well as preparation method and application thereof
A low eutectic solvent, bicyclic guanidine technology, applied in the field of polymer plastic degradation, green/clean catalysis technology, can solve the problems of low reaction rate, harsh reaction conditions, difficulty in refining products, etc., to achieve stable catalyst, achieve yield, high yield effect
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[0027] Example 1
[0028] No ion water was added to 20 mL of the Schleck reactor, then 2 g of 1,5,7-triazine bicyclic (4.4.0) and-5-ene was added. The heating stirred under high pure nitrogen was heated. After the system temperature reached 30 ° C, the aqueous hydrochloride solution was added dropwise to the kettle to the kettle, control 1,5,7-triazine double ring (4.4.0) Di-5-ethylene and hydrochloride were 1: 2 stirring. The resulting product was rotationally evaporated, the solid product was dried in a vacuum drying tank to give 2.51 g of a white solid product, i.e., chlorinated bicyculthloride, yield of 98.4%. The mixture of chloride and zinc chloride was then mixed with acetate, and the reaction temperature was 80 ° C, the reaction time was 4 h; the chlorinated bicyclic / acetate low-molten solvent was obtained.
Example Embodiment
[0029] Example 2
[0030] No ion water was added to 20 mL of the Schleck reactor, then 2 g of 1,5,7-triazine bicyclic (4.4.0) and-5-ene was added. After heating, heating under high pure nitrogen, after the system temperature reached 30 ° C, a aqueous solution of acetic acid having a concentration of 4% by the constant pressure droplet funnel, controls 1,5,7-triazine double ring (4.4.0) The decay-5-ethylene and acetate molar ratio was 1: 1. The resulting product was rotationally evaporated, the solid product was dried in a vacuum drying tank for 48 h to give a white solid product 2.49g, i.e., acetalic acid, gtuanide, yield of 96.2%. The mixture of acetate and zinc acetate was then mixed with acetate, and the reaction temperature was 80 ° C, the reaction time was 4 h; the mixture of bicyclic / acetate of acetate was prepared. Solvent.
Example Embodiment
[0031] Example 3
[0032] No ion water was added to 20 mL of the Schleck reactor, then 2 g of 1,5,7-triazine bicyclic (4.4.0) and-5-ene was added. After heating under high pure nitrogen, the system temperature reached 80 ° C, and the concentration of 4% aqueous phosphoric acid was added dropwise from the constant pressure droplet funnel to the kettle, control 1,5,7-triazine double ring (4.4.0) The decay-5-ethylene and the molar ratio of the phosphate were 3: 1. The resulting product was rotationally evaporated, and the solid product was dried in a vacuum drying tank to give 2.52 g of a white solid product, i.e., cc. 95.4% yield. Subsequently, the cycloocycloxide and the zinc acetate were mixed with acetate, and the reaction temperature was 80 ° C, the reaction time was 4 h; the reaction time was 4 h; the bicyclic / zinc acetate low-molten solvent was prepared.
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