Method for preparing furfuryl alcohol by formic acid transfer and hydrogenation of furfural

A transfer hydrogenation and aldehyde-formic acid technology, applied in the direction of organic chemistry, to achieve the effect of mild conditions, simple process and easy operation

Active Publication Date: 2018-04-27
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because furfural and furfuryl alcohol are unstable under acidic conditions, they are prone to polymerization to form furfural resin and furfuryl alcohol resin. At present, there is no report on the use of formic acid as a hydrogen donor to catalyze the transfer hydrogenation of furfural to prepare furfuryl alcohol.

Method used

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  • Method for preparing furfuryl alcohol by formic acid transfer and hydrogenation of furfural
  • Method for preparing furfuryl alcohol by formic acid transfer and hydrogenation of furfural

Examples

Experimental program
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Effect test

Embodiment 1

[0021] Add 0.3g furfural to 20g 1,4-dioxane, then add 0.15g anhydrous formic acid and 0.04g metal catalyst (the mass ratio of Pd / C (5wt%) and CuO is 3:1) and mix In a closed high-pressure reactor, replace the air with nitrogen for 3 to 5 times to discharge the air, and react at 170°C for 3 hours to obtain furfuryl alcohol with a conversion rate of 47.8% and a yield of 45.7%.

Embodiment 2

[0023] Add 0.3g furfural to 20g 1,4-dioxane, then add 0.3g anhydrous formic acid and 0.04g metal catalyst (the mass ratio of Pd / C (5wt%) and CuO is 3:1) and mix In a closed high-pressure reactor, replace the air with nitrogen for 3 to 5 times, and react at 170°C for 3 hours to obtain furfuryl alcohol with a conversion rate of 73.9% and a yield of 70.2%. figure 2 .

Embodiment 3

[0025] Add 0.3g furfural to 20g 1,4-dioxane, then add 0.6g anhydrous formic acid and 0.04g metal catalyst (the mass ratio of Pd / C (5wt%) and CuO is 3:1) and mix In a closed high-pressure reactor, replace the air with nitrogen 3 to 5 times to discharge the air, and react at 170°C for 3 hours to obtain furfuryl alcohol with a conversion rate of 100.0% and a yield of 98.1%.

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Abstract

The invention discloses a method for preparing furfuryl alcohol by formic acid transfer and hydrogenation of furfural, and relates to a preparation method for the furfuryl alcohol. The method comprises the following steps: adding a reaction substance to an organic solvent, and preparing reactant solution; mixing the reactant solution, an anhydrous formic acid and a catalyst in a reaction kettle, exhausting the air, to obtain the furfuryl alcohol after a hydrogenation reaction. Pd/C and CuO are used as a composite catalyst, and the formic acid is used as a hydrogen donor. In an organic solventsystem, the furfuryl alcohol is prepared through decomposing the formic acid to generate hydrogen and catalyzing the furfural for the reduction. The whole process is simple, the operation is easy, theconsumed time is short, the cost is low, the reaction system is green, the catalyst activity is high, and the furfuryl alcohol yield is high. In addition, the reaction system is capable of effectively solving a problem that the furfural and furfuryl alcohol in an acid system are easily polymerized, and has the extensive industrial application prospect.

Description

technical field [0001] The invention relates to a method for preparing furfuryl alcohol, in particular to a method for preparing furfuryl alcohol by transferring hydrogenation of formic acid from furfural. Background technique [0002] Furfuryl alcohol is an important fine chemical, which is widely used in synthetic fiber, rubber and pesticide industries. It can be used to manufacture a variety of resins. Among them, furfuryl alcohol resin can be used to produce plasticizers with excellent cold resistance. 80-90% of furfuryl alcohol in my country Consumed in furan resin, furan resin is widely used as a sand core binder in the foundry industry, and part of furfuryl alcohol is used in the production of high temperature resistant phenolic resin binders for friction wheels, used in vehicle brake pads, etc.; in addition, furfuryl alcohol is also Intermediates for the production of spices, fragrances, medicines, and pesticides. [0003] Furfuryl alcohol is mainly derived from the d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D307/44
CPCC07D307/44
Inventor 孙勇杜娟唐兴林鹿曾宪海
Owner XIAMEN UNIV
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