Synthesizing method for oxidizing cobalt and manganese-based composite oxide catalyzed alcohol into aldehyde or ketone

A composite oxide and synthesis method technology, which is applied in the field of catalytic synthesis of aldehydes or ketones, can solve problems such as high reaction temperature, long reaction time, and expensive reaction equipment, and achieve the effects of mild reaction conditions, high compatibility, and excellent yield

Active Publication Date: 2018-06-12
ANHUI UNIVERSITY OF TECHNOLOGY
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In addition to cobalt-manganese-based catalysts, the invention patent CN104817441B proposes a method of using gold as a catalyst to catalyze the oxidation of alcohols into aldehydes or ketones, which relies on expensive reaction equipment
[0010] In s

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Synthesizing method for oxidizing cobalt and manganese-based composite oxide catalyzed alcohol into aldehyde or ketone
  • Synthesizing method for oxidizing cobalt and manganese-based composite oxide catalyzed alcohol into aldehyde or ketone
  • Synthesizing method for oxidizing cobalt and manganese-based composite oxide catalyzed alcohol into aldehyde or ketone

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: add p-methylbenzyl alcohol (1mmol) and toluene (2mL) in the reaction tube of 10mL, add catalyst Co x mn y o 4 (x / y=1), the reaction mixture was reacted at 60° C. for 6 h. After the reaction was completed, the target product I was separated by column chromatography with a yield of 56.3%.

[0029]

[0030] The proton NMR data of product I are: δ9.88(s, 1H), 7.70(d, J=8.1Hz, 2H), 7.25(d, J=7.9Hz, 2H), 2.36(s, 3H).

Embodiment 2

[0031] Embodiment 2: according to the step of embodiment 1, the difference is that the catalyst is Co x mn y o 4 (x / y=10), the reaction time is 10h, and the yield of product I is 99.9%.

Embodiment 3

[0032] Embodiment 3: according to the step of embodiment 1, the difference is that the catalyst is Co x mn y o 4 (x / y=30), the reaction time was 12h, and the yield of product I was 89.7%.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a synthesizing method for oxidizing cobalt and manganese-based composite oxide catalyzed alcohol into aldehyde or ketone and belongs to the technical field of aldehyde or ketone synthesis. According to the method, under the action of a cobalt and manganese-based catalyst, air or oxygen is utilized as an oxidant; under the heating condition, alcohol is oxidized into corresponding aldehyde or ketone under a liquid phase. The synthesizing method disclosed by the invention has the advantage of moderate reaction conditions, reaction can be performed under the air condition,and the reaction can achieve a high-efficiency catalyzing effect of alcohol oxidization without a catalysis promoting effect of alkali, a special oxidant and/or other any organic/inorganic additive.

Description

Technical field: [0001] The invention belongs to the technical field of catalytic synthesis of aldehydes or ketones, and relates to a method of directly oxidizing alcohols into corresponding aldehydes or ketones by air under the action of a cobalt-manganese-based composite catalyst, which contains differently substituted primary or secondary alcohols under heating. resolve resolution. Background technique: [0002] The oxidation reaction of alcohol is a very important reaction in organic chemistry. It plays an important role in the process of fine chemicals, pharmaceutical synthesis and total synthesis of natural products, and is also a key step in the preparation of important industrial raw materials such as pyridine. The research on the oxidation of alcohols to aldehydes or ketones is a hot research direction in the research of oxidation reactions. Compared with the homogeneous catalytic system, the biggest advantage of the heterogeneous catalytic system is the easy separ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C07B41/06C07C45/38C07C45/29C07C47/542C07C47/575C07C47/24C07C45/39C07C49/786C07D333/22
CPCC07B41/06C07C45/298C07C45/38C07C45/39C07D333/22C07C47/542C07C47/575C07C47/24C07C49/786
Inventor 柯清平李丹丹崔平谢瑞伦刘祥春赵志刚凌强
Owner ANHUI UNIVERSITY OF TECHNOLOGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap