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Iron (II) doped bamboo charcoal material, and preparation method and application thereof

A technology of bamboo charcoal and nitric acid aqueous solution, which is applied to the preparation of carbon-based compounds, chemical instruments and methods, and the preparation of organic compounds. It can solve the problems of using corrosive solvents and additives, high reaction temperature, and difficult control, and avoid Use of toxic and harmful reagents, highly selective synthesis, and good thermal stability

Pending Publication Date: 2021-12-14
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high reaction temperature, high energy consumption, and difficult control, the product is prone to deep oxidation
At the same time, this method also has problems such as large catalyst consumption, low catalyst recovery rate, and the use of corrosive solvents and additives, which makes the current production process of aromatic ketones not in line with the production concept of green chemistry in the chemical industry.

Method used

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  • Iron (II) doped bamboo charcoal material, and preparation method and application thereof
  • Iron (II) doped bamboo charcoal material, and preparation method and application thereof
  • Iron (II) doped bamboo charcoal material, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] In a 500mL single-necked round bottom flask, 5.00g of commercially available bamboo charcoal was dispersed in 250mL of 2mol / L nitric acid aqueous solution, stirred and heated to 80°C, and stirred for 3.0h. After cooling to room temperature, the resulting carbon material was washed with distilled water (3×100 mL) to obtain activated bamboo charcoal. In a 250mL single-necked round bottom flask, the resulting bamboo charcoal was dispersed in 200mL of 3mol / L ferric acetate aqueous solution, stirred and heated to 80°C, continuously stirred and loaded for 12.0h, cooled to room temperature, washed with distilled water (3×100mL), vacuumed at 80°C dry. The obtained material was in N 2 The temperature was raised to 500° C. under atmosphere, and the temperature was naturally lowered after 2.0 hours of heat treatment. After cooling to room temperature, 2mol / L hydrochloric acid solution was stirred and washed for 8.0h. Wash with deionized water to neutrality, and vacuum dry at 80...

Embodiment 2

[0037]In a 500mL single-necked round bottom flask, 5.00g of commercially available bamboo charcoal was dispersed in 250mL of 1mol / L nitric acid aqueous solution, stirred and heated to 80°C, and stirred for 3.0h. After cooling to room temperature, the resulting carbon material was washed with distilled water (3×100 mL) to obtain activated bamboo charcoal. In a 250mL single-necked round bottom flask, the resulting bamboo charcoal was dispersed in 200mL of 3mol / L ferric acetate aqueous solution, stirred and heated to 80°C, continuously stirred and loaded for 12.0h, cooled to room temperature, washed with distilled water (3×100mL), vacuumed at 80°C dry. The obtained material was in N 2 The temperature was raised to 500° C. under atmosphere, and the temperature was naturally lowered after 2.0 hours of heat treatment. After cooling to room temperature, 2mol / L hydrochloric acid solution was stirred and washed for 8.0h. Wash with deionized water to neutrality, and vacuum dry at 80°...

Embodiment 3

[0039] In a 500mL single-necked round bottom flask, 5.00g of commercially available bamboo charcoal was dispersed in 250mL of 14mol / L nitric acid aqueous solution, stirred and heated to 80°C, and stirred for 3.0h. After cooling to room temperature, the resulting carbon material was washed with distilled water (3×100 mL) to obtain activated bamboo charcoal. In a 250mL single-necked round bottom flask, the resulting bamboo charcoal was dispersed in 200mL of 3mol / L ferric acetate aqueous solution, stirred and heated to 80°C, continuously stirred and loaded for 12.0h, cooled to room temperature, washed with distilled water (3×100mL), vacuumed at 80°C dry. The obtained material was in N 2 The temperature was raised to 500° C. under atmosphere, and the temperature was naturally lowered after 2.0 hours of heat treatment. After cooling to room temperature, 2mol / L hydrochloric acid solution was stirred and washed for 8.0h. Wash with deionized water to neutrality, and vacuum dry at 8...

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Abstract

The invention provides an iron (II) doped bamboo charcoal material, a preparation method thereof, and an application of the iron (II) doped bamboo charcoal material in a reaction of catalytically oxidizing an ethylbenzene compound to synthesize an acetophenone compound. The iron (II) doped bamboo charcoal material disclosed by the invention is simple to prepare, low in cost and good in thermal stability; and the iron (II) doped bamboo charcoal material is used as a catalyst, oxygen is catalyzed to oxidize aromatic hydrocarbon benzyl secondary C-H bonds under the condition of no solvent and no additive, so efficient and high-selectivity synthesis of aromatic ketone compounds is achieved under the mild condition, use of toxic and harmful reagents is effectively avoided, the social requirements of the current green chemical process are met, and the important application value is realized.

Description

technical field [0001] The invention relates to an iron (II) doped bamboo charcoal material and its preparation method and its application in the reaction of catalyzing the oxidation of ethylbenzene and its derivatives to synthesize acetophenone and its derivatives, belonging to the field of organic catalysis and fine organic synthesis . Background technique [0002] The catalytic oxidation of benzylic secondary C-H bonds in aromatic hydrocarbons is an important chemical transformation process. The oxidation products of acetophenone and its derivatives are a series of important and valuable oxygen-containing compounds, which are widely used in flavors, fragrances, medicines, pesticides, Basic raw materials for industries such as resins and dyes (WO 201611034971; Bioorganic & Medicinal Chemistry Letters 2019, 29: 5 25-528; Bioorganic Chemistry 2019, 82: 360-377; ACS Applied Materials & Interfaces 2018, 10: 44324-44335). [0003] At present, the synthesis of acetophenone in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/745B01J21/18B01J37/06B01J37/08C07C45/36C07C49/78C07C201/12C07C205/45C07C205/57C07C49/67C07C49/807
CPCB01J23/745B01J21/18B01J37/06B01J37/08C07C45/36C07C201/12C07C2602/10C07C49/78C07C49/67C07C49/807C07C205/45C07C205/57
Inventor 佘远斌周梦梦沈海民
Owner ZHEJIANG UNIV OF TECH
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