Conjugated microporous polymer based on 2,4,6-tri(4-formylphenyl)pyrimidine and preparation method of conjugated microporous polymer
A technology of formylphenyl and conjugated micropores, which is applied in chemical instruments and methods, organic compound/hydride/coordination complex catalysts, chemical/physical processes, etc., can solve the needs of diverse CMPs, There are few types of CMPs, etc., to achieve the effect of large-scale production and simple and easy preparation methods
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[0033] The invention provides a method for preparing a conjugated microporous polymer based on 2,4,6-tris(4-formylphenyl)pyrimidine, comprising the following steps:
[0034] Mix 2,4,6-tris(4-formylphenyl)pyrimidine, symmetrical indacene-1,3,5,7(2H,6H)-tetraketone, organic solvent and acidic reagent, and prepare the resulting mixture The solution was subjected to aldol condensation reaction in a protective atmosphere to obtain a conjugated microporous polymer based on 2,4,6-tris(4-formylphenyl)pyrimidine.
[0035] The present invention has no special limitation on the source of the symmetric indacene-1,3,5,7(2H,6H)-tetraketone, which can be commercially available or self-made; in the present invention, the symmetric indacene Dashen-1,3,5,7(2H,6H)-tetraketone is preferably self-made, and the preparation method preferably includes the following steps:
[0036] Mix pyromellitic dianhydride, ethyl acetoacetate and triethylamine, heat in an oil bath to 60-65°C, add acetic anhydride...
Embodiment 1
[0067] Preparation of 2,4,6-tris(4-formylphenyl)pyrimidine comprises the following steps:
[0068] 2,4,6-trichloropyrimidine (0.3750g, 2mmol), 4-formylphenylboronic acid (1.4020g, 9mmol), potassium carbonate (0.7501g, 6mmol), cesium carbonate (1.9504g, 6mmol), four (Triphenylphosphine)palladium (3.5008g, 0.3mmol) was successively added into a round-bottomed flask and a magnet was placed, and then toluene (25mL), absolute ethanol (5mL) and distilled water (5mL) were successively added into the round-bottomed flask As a reaction solvent, place the round-bottomed flask in an oil bath, control the temperature of the oil bath to 100°C, and carry out the Suzuki coupling reaction under nitrogen protection and stirring for 72 hours at the beginning of system reflux; cool to room temperature after the reaction , add distilled water (100mL) and dichloromethane (100mL) to extract the product system obtained, separate to obtain the upper organic phase liquid, add anhydrous magnesium sulfa...
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