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Method for carrying out isosynthesis on geraniol by adopting linalool

A technology of isomerization synthesis and linalool, applied in the direction of isomerization preparation, chemical instruments and methods, preparation of organic compounds, etc., can solve the problems of large amount of auxiliary materials, complicated process, difficult reaction, etc., and achieve consumption of auxiliary materials Less, simple process route, easy to control the effect of the reaction

Inactive Publication Date: 2014-12-10
WUZHOU PINE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by the present invention is to provide a method for synthesizing geraniol through isomerization of linalool, which can solve the problems of complex process, difficult reaction control, large amount of auxiliary materials and high cost in the existing geraniol production method. question

Method used

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Effect test

Embodiment 1

[0014] The method for the synthetic geraniol of this linalool isomerization is:

[0015] Add 0.8kg of linalool, 0.6kg of cinnamyl acetate, 0.002kg of dibutyltin dilaurate and 0.004kg of ammonium vanadium oxide into the reaction kettle, raise the temperature to 170°C, stir for 8 hours, then undergo hydrolysis and rectification under reduced pressure, Discharge.

[0016] The total alcohol content of the geraniol obtained in the present embodiment is 98%.

Embodiment 2

[0018] The method for the synthetic geraniol of this linalool isomerization is:

[0019] Add 0.9kg of linalool, 0.7kg of cinnamyl acetate, 0.003kg of stannous octoate and 0.007kg of vanadium pentoxide into the reaction kettle, raise the temperature to 180°C, stir for 10 hours, then undergo hydrolysis, rectification under reduced pressure, and discharge .

[0020] The total alcohol content of the geraniol obtained in the present embodiment was 98.5%.

Embodiment 3

[0022] Add 1kg of linalool, 0.8kg of cinnamyl acetate, 0.004kg of dibutyltin diacetate and 0.01kg of ammonium vanadium oxide into the reaction kettle, raise the temperature to 190°C, stir for 12 hours, then undergo hydrolysis, rectification under reduced pressure, and discharge.

[0023] The total alcohol content of the geraniol obtained in the present embodiment is 99%.

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Abstract

The invention discloses a method for carrying out isosynthesis on geraniol by adopting linalool, belonging to the technical field of turpentine deep processing. The method comprises the steps of adding linalool, cinnamyl acetate, an organic tin catalyst and a vanadium compound catalyst to a reaction kettle, heating the materials to 170-190 DEG C, stirring the materials for 8-12 hours and then carrying out hydrolysis, rectification at reduced pressure and discharging. The method has the advantages of simple process, small auxiliary material utilization amount and low cost, and reactions are easy to control.

Description

technical field [0001] The invention belongs to the technical field of turpentine deep processing, and in particular relates to a method for synthesizing geraniol through isomerization of linalool. Background technique [0002] Geraniol is a colorless to yellow oily liquid with a mild, sweet rose scent. Geraniol is the main ingredient of rose essence, and is an indispensable flavoring raw material in various floral essences. It is widely used in floral fragrances for daily use, and can also be used in apple, strawberry and other fruity fragrances, cinnamon, ginger and other fragrances. It can also be used to make ester flavors. [0003] The method for producing geraniol in the existing industry mainly contains the high-molecular-weight polyhydric alcohol borate as a reaction aid with a molecular weight of 5000-10000, and takes VB and VIB group metals or their oxides as a catalyst to make linaleol. Alcohol synthesis method for geraniol. However, this method has the disadva...

Claims

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Application Information

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IPC IPC(8): C07C33/02C07C29/56C07C27/02C11B9/00
CPCC07C29/56C07C29/09C07C29/80
Inventor 刘建军陈伟强黄宇平陈键泉岑潮锋董俊
Owner WUZHOU PINE CHEM
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