Check patentability & draft patents in minutes with Patsnap Eureka AI!

Synthetic method for olefin compounds

A synthetic method and compound technology, applied in organic chemical methods, chemical instruments and methods, and hydrocarbon production from oxygen-containing organic compounds, etc., can solve the problems of harsh reaction conditions, many side reactions, and long reaction time, and achieve simple operation, Mild reaction and low corrosion effect

Inactive Publication Date: 2013-12-04
SUZHOU RES INST LANZHOU INST OF CHEM PHYSICS CHINESE ACADEMY OF SCI
View PDF3 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of using transition metals and strong protonic acids or highly corrosive catalysts, harsh reaction conditions, long reaction times, and many side reactions in the prior art, and provide a Ionic liquid-catalyzed alkylation of alcohols with alcohols and olefins to generate olefins is a more efficient, economical and environmentally friendly method

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
  • Synthetic method for olefin compounds
  • Synthetic method for olefin compounds
  • Synthetic method for olefin compounds

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049]

[0050] At 80°C, put α-phenylethanol (1.0mmol, 122mg) and 4-chlorobenzhydryl alcohol (0.5mmol, 109.3mg) and [BsOdP]OTf (10mol%, 30.5mg), dichloromethane 2.0mL in a dry place In the reaction flask, magnetically stirred, and reacted for 12h. After the reaction, column chromatography separation (using silica gel column; eluent: petroleum ether) to obtain pure product: (E)-(3-(p-chlorophenyl)-1,3-diphenyl-1-propene , 121.6 mg, the yield was 80%.

Embodiment 2

[0052] At 80°C, α-phenylethanol (1.0mmol, 122mg) and 4-chlorobenzhydryl alcohol (0.5mmol, 109.3mg) and [BsMIm][HSO 4 ] (10mol%, 30.5mg), dichloromethane 2.0mL was placed in a dry reaction flask, magnetically stirred, and reacted for 12h. After the reaction, column chromatography separation (using silica gel column; eluent: petroleum ether) to obtain pure product: (E)-(3-(p-chlorophenyl)-1,3-diphenyl-1-propene , and the yield was 31%.

Embodiment 3

[0054] At 80°C, put α-phenylethanol (1.0mmol, 122mg) and 4-chlorobenzhydryl alcohol (0.5mmol, 109.3mg) and [BsMIm][OTf] (10mol%, 30.5mg), dichloromethane 2.0mL In a dry reaction vial, stirred by magnetic force, reacted for 12h. After the reaction, column chromatography separation (using silica gel column; eluent: petroleum ether) to obtain pure product: (E)-(3-(p-chlorophenyl)-1,3-diphenyl-1-propene , the yield is 55%.

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 synthetic method for olefin compounds. According to the synthetic method, a functionalized ionic liquid is taken as a catalyst, and the reactants are catalyzed and subjected to an alkylation reaction for synthesis of the olefin compounds. The catalyst is an acid-functionalized ionic liquid belonging to a nonmetal system and is environment friendly; the catalyst is small in use amount, high in catalytic activity, good in stability and low in corrosivity; the synthetic method has good product selectivity, simple operation, strong controllability, wide substrate application scope, mild reaction condition, simple post treatment and easy separability between the products and the catalyst; and the catalyst is reusable.

Description

technical field [0001] The invention relates to a method for synthesizing olefinic compounds. Background technique [0002] The construction of C-C bonds is one of the important research contents in the field of organic synthesis, and has important application value in theoretical research and industrial and agricultural production. Alkylation of alcohols is an important method for constructing C-C bonds. Olefin compounds synthesized by this method are important chemical raw materials and have important uses in organic synthesis, pharmaceuticals, polymer materials and fine product chemistry. The synthesis method of olefins commonly used in the industry comes from the cracking of petroleum. The polymerized olefins can be used to synthesize resins, fibers, plastics, etc., and have good physical and chemical properties, such as: good electrical insulation performance, chemical corrosion resistance , cold resistance, non-toxic, can be made into film as packaging material for fo...

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): C07B37/00C07C25/28C07C17/26C07C15/50C07C15/58C07C1/20
Inventor 陈静杨磊韩峰李臻夏春谷
Owner SUZHOU RES INST LANZHOU INST OF CHEM PHYSICS CHINESE ACADEMY OF SCI
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com