Hydrophilic inorganic porous material, preparation method and application thereof to reaction of selective catalytic aldehyde or ketone and hydroxylamine
An inorganic porous material and hydrophilic technology, applied in the direction of inorganic chemistry, oxime preparation, organic chemistry, etc., can solve the problems of catalyst stability, catalyst/product separation difficulty, limited application range, etc.
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[0024] Example 1
[0025] A hydrophilic inorganic porous material, its chemical formula is: H 110 Co 4 K 2 O 123 W 19 Zn 5 .
[0026] The preparation method of the hydrophilic inorganic porous material specifically includes the following steps:
[0027] 1) Preparation of precursor sandwich polyacid K 12 [WZn 3 (H 2 O) 2 (ZnW 9 O 34 ) 2 ]·46H 2 O: First refer to the method in the literature (C. M. Tourne, G. F. Tourne, F. Zonnevijlleb. Dalton Trans., 1991, 1:143–155) to prepare Na 12 [WZn 3 (H 2 O) 2 (ZnW 9 O 34 ) 2 ]·46H 2 O; Then add KCl solid to the solution to replace Na ions and convert them into K 12 [WZn 3 (H 2 O) 2 (ZnW 9 O 34 ) 2 ]·46H 2 O, this is common knowledge in the field, so I won't repeat it here;
[0028] 2) Put K 12 [WZn 3 (H 2 O) 2 (ZnW 9 O 34 ) 2 ]·46H 2 O (60 mg, 0.02 mmol), Co(NO 3 ) 2 ·3H 2 O (40 mg, 0.19 mmol) was added to a mixed solution consisting of 4 mL of distilled water and 2 mL of methanol, stirred overnight at room temperature, and then transferred to a...
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