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Method for carrying out chemical reactions with the aid of an inductively heated heating medium

A heating medium and chemical reaction technology, applied in the field of chemical reaction, can solve problems such as limited size

Inactive Publication Date: 2014-09-03
HENKEL KGAA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, this limits the size of the surface that can be used to heat the reaction medium

Method used

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  • Method for carrying out chemical reactions with the aid of an inductively heated heating medium
  • Method for carrying out chemical reactions with the aid of an inductively heated heating medium
  • Method for carrying out chemical reactions with the aid of an inductively heated heating medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 7

[0147] Transesterification of ethyl cinnamate 59 with methyl cinnamate 60. According to the literature (K.Jansson, T.Fristedt, A.Olsson, B.Svensson, S. J.Org.Chem., 2006, 71, 1658-1667). Excess sodium methoxide was used to shift the transesterification equilibrium to the desired product. Using induction heating (flow rate: 2 mL / min, PWM=240‰), 93% of the product precipitated after 25 minutes.

[0148]

[0149] Additional Flow-Through Reactions Using Induction Heating

[0150] (prom=PWM, expressed in ‰. The number expressed in % below the product chemical formula indicates the yield.)

Embodiment 8

[0151] Example 8: Synthesis of Heterocycles:

[0152]

Embodiment 9

[0153] Example 9: Hartwig-Buchwald coupling:

[0154]

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PUM

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Abstract

The invention relates to a method for carrying out a chemical reaction for producing a target compound by heating in a reactor a reaction medium containing at least one first reactant, such that a chemical bond inside the first reactant or between the first and a second reactant is formed or modified. The reaction medium is brought into contact with a solid heating medium that can be warmed by electromagnetic induction and that is inside the reactor and is surrounded by the reaction medium. Said heating medium is heated by electromagnetic induction with the aid of an inductor and the target bond is formed from the first reactant or from the first and a second reactant and said target bond is separated from the heating medium.

Description

technical field [0001] The invention belongs to the field of chemical synthesis, and relates to a method for carrying out chemical reaction with the help of an induction heating heating medium. Background technique [0002] Various techniques are known for heating reactants in order to carry out thermally initiatable chemical reactions. Heating by heat conduction is the most widely used. Here the reactants are present in a reactor in which either the reactor wall itself is heated or in which heat transfer elements such as heating coils or heat exchange tubes or plates are installed inside the reactor. This process is relatively slow, so that firstly the reactants heat up slowly and secondly the heat input cannot be rapidly suppressed or even counteracted by cooling. Another method is to heat the reactants by microwave radiation into the reactants themselves or into the medium containing the reactants. However, microwave generators pose a significant safety risk due to the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/12
CPCC07C67/303B01J2208/0038C07C41/30B01J2219/00139C07B61/00C07C37/055B01J2208/00513C07C205/60C07C67/03B01J2208/00433H05B6/108C07D295/073B01J19/12H05B6/106C07C45/69B01J8/42C07C209/36C07D277/56C07C49/796C07C69/618C07C69/612C07C211/46C07C43/215C07C39/225
Inventor 卡斯滕·弗里泽安德烈亚斯·基施宁于尔根·维歇尔豪斯萨沙·沃尔汉·杰伊兰
Owner HENKEL KGAA