Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method for synthesizing isobornyl acetate by esterification of camphene and acetic acid

A technology for the synthesis of isobornyl acetate, which is applied in the preparation of organic compounds, carboxylic acid ester preparation, chemical instruments and methods, etc., to achieve the effects of high conversion rate, high activity, and mild reaction conditions

Active Publication Date: 2010-12-22
SHANGHAI HUAYI GRP CO
View PDF2 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention adopts synthetic molecular sieve as catalyst, has mild reaction conditions, high catalyst activity, good selectivity, and is environmentally friendly, effectively solves the problems existing in the existing process, and provides a new effective way for synthesizing isobornyl acetate. Effectively solve the problems existing in the prior art

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
  • Preparation method for synthesizing isobornyl acetate by esterification of camphene and acetic acid
  • Preparation method for synthesizing isobornyl acetate by esterification of camphene and acetic acid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～5

[0013] 100 grams of the synthesized molecular sieve catalysts were respectively loaded into a fixed-bed tubular reactor, and amphene and acetic acid raw materials were injected into the reactor in a certain proportion with a metering pump to carry out normal pressure reaction. The specific reaction conditions and reaction results are shown in Table 1.

[0014] Table 1

[0015]

Embodiment 6～10

[0017] In 500 milliliters of stainless steel stirred reactors, respectively add 300 grams of mixed raw materials and a certain amount of catalysts (based on the reaction raw materials) by a certain acetic acid / amphene mol ratio, then heat up and carry out normal pressure reaction, specific reaction conditions and The reaction results are shown in Table 2.

[0018] Table 2

[0019]

[0020] Can find out from above-mentioned table 1, table 2: owing to having selected highly active catalyzer, the selectivity of the isobornyl acetate that preparation method of the present invention makes is up to 95.6%, and the camphene conversion rate is up to 92.6%, and the The preparation method has mild reaction conditions and is environmentally friendly, and can be widely used in the industrial synthesis of isobornyl acetate.

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 relates to a preparation method for synthesizing isobornyl acetate by esterification of camphene and acetic acid. A synthesized molecular sieve is taken as a catalyst; the raw materials camphene and acetic acid are proportionally added into a fixed bed tubular reactor or reaction kettle respectively for reaction to obtain the target product isobornyl acetate. The invention has the advantages of mild reaction conditions, high catalyst activity, high selectivity of isobornyl acetate and is environmentally friendly and can be widely applied to industrial large-scale production of isobornyl acetate.

Description

technical field [0001] The invention relates to a preparation method for synthesizing isobornyl acetate by esterification of camphene and acetic acid. Background technique [0002] Isobornyl acetate is an important intermediate in the process of synthesizing camphor, which is mainly obtained through esterification with camphene and acetic acid as raw materials. Camphor is a kind of terpenoid compound, which belongs to bicyclic monoterpene, and is widely used in daily life. Due to the shortage of natural camphor, the synthesis of camphor has been paid more and more attention, and the synthesis of its intermediate isobornyl acetate is also more and more important. [0003] Industrially, sulfuric acid, ionic membrane, cation exchange resin, etc. are often used as catalysts for the synthesis of isobornyl acetate from camphene and acetic acid. The traditional process using sulfuric acid as a catalyst has disadvantages such as serious equipment corrosion, large environmental poll...

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): C07C69/14C07C67/04B01J29/40B01J29/70B01J29/08B01J29/85
Inventor 宁春利刘金龙张琪均张春雷
Owner SHANGHAI HUAYI GRP CO
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com