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Preparation method and application of Pd complex-phosphomolybdic acid one-component dual-active-center catalyst

A technology of monomolybdenum phosphate and palladium complexes, which is applied in the preparation of organic compounds, organic compound/hydride/coordination complex catalysts, carbon-based compound preparation, etc., can solve the problems of low activity and large amount of catalyst, and achieve The preparation method is simple, the catalytic activity is good, and the effect that is beneficial to industrial production

Active Publication Date: 2014-01-01
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Palladium complex-polymetallic oxygen cluster binary catalysts can solve the problems of low activity and large catalyst dosage in the selective oxidation of alcohols under ambient pressure when molecular oxygen is the oxidant of pure polymetallic oxygen cluster catalysts

Method used

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  • Preparation method and application of Pd complex-phosphomolybdic acid one-component dual-active-center catalyst
  • Preparation method and application of Pd complex-phosphomolybdic acid one-component dual-active-center catalyst
  • Preparation method and application of Pd complex-phosphomolybdic acid one-component dual-active-center catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1: compound [PD (DPA)) 2 ] 3 [PMO 12 O 40 ] 2 · Preparation of 12DMSO: 2,2′-diorerine, PD (OAC) 2 H 3 PMO 12 O 40 Add to the reactor with a second-meta-based algia (the ratio of the amount of raw materials 2,2′-diorerine: PD (OAC) 2 : H 3 PMO 12 O 40 For 4: 3.5: 1.5), the reaction of stirring at room temperature for 20 minutes, filtering, the filter fluid slowly evaporated at room temperature, and the stick-shaped single crystal was obtained after 7-9 days.The yield is about 82.3%.

Embodiment 2

[0029] Example 2: compound [PD (DPA)) 2 ] 3 [PMO 12 O 40 ] 2 · Preparation of 12DMSO: In a clean cup, 2,2′-two pyrine (3 mmol), PD (OAC) 2 (3 mmol) and h 3 PMO 12 O 40 (2 mmol) Add to 15 ml of second -based ash, mix and stir, stir the obtained solution at room temperature for 30 min, filter, slowly evaporate at room temperature, and get stick -shaped single crystals after 9 days.The yield is about 84.6%.

Embodiment 3

[0030] Example 3: compound [PD (DPA)) 2 ] 3 [PMO 12 O 40 ] 2 · Preparation of 12DMSO: 2,2′-diorerine, PD (OAC) 2 H 3 PMO 12 O 40 Add to the reactor with a second-meta-based algia (the ratio of the amount of raw materials 2,2′-diorerine: PD (OAC) 2 : H 3 PMO 12 O 40 It is 4.5: 3: 1). The reaction of stirring at room temperature is 30 minutes, filtering, and the filter fluid slowly evaporates at room temperature. After 5 days, a rod -shaped single crystal is obtained.The yield is about 87%.

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Abstract

The invention relates to a preparation method and application of a Pd complex-phosphomolybdic acid one-component dual-active-center catalyst. Pd complexes and polyoxometalates are combined via electrostatic force, and a Pd complex-phosphomolybdic acid binary catalyst is prepared in a one-pot way. The preparation method is based on coordination substitution and an ion exchange reaction, and has the characteristics of high simplicity and easiness in implementation, operation controllability and the like. The Pd complex-phosphomolybdic acid binary catalyst represents better catalytic activity in the selective oxidation of alcohol, and the transformation ratio and selectivity respectively reach 99.8 percent and 98.2 percent to the hilt.

Description

Technical field [0001] The invention is the field of catalyst material preparation technology, which is specifically involved in a dual activity center catalyst, preparation method and application of a dual activity center of a pyromonatical parts-molybdenum phosphate. Background technique [0002] The selective oxidation of alcohol is an important conversion in the laboratory and the chemical industry. The essence of this process is oxide dehydrogenation, and its corresponding productdehyde or ketone has a wide range of applications in chemical industry production and fine chemical synthesis.At present, in industrial production that is catalyzed by alcohol oxidation, the metal oxides or metal salts that use chemical measurement or even exceed the chemical measurement are used as oxidants ((A) G. CAINELLI, G. Cardillo, Chromium oxidants in ORGANIC Chemistry , Springer Press: Berlin, 1984; (B) F. M. Menger, C. Lee, Tetrohedron Lett ., 1981, 22 , 1655-1662.), These substances inevi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/22C07B41/06C07C45/38C07C45/39C07C47/54C07C47/542C07C47/575C07C47/55C07C49/78C07C49/786C07C201/12C07C205/44C30B7/14C30B29/54
Inventor 迟瑛楠黄现强胡长文张小梅王博
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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