5-Hydroxymethylfurfural Synthesis from Monosaccharides by a Biphasic Reaction-Extraction System Using a Microreactor...

Area of Science:

• Chemical Engineering
• Organic Synthesis
• Green Chemistry

Background:

• 5-Hydroxymethylfurfural (HMF) is a key platform chemical derived from biomass.
• HMF is prone to degradation under reaction conditions, limiting yield and recovery.
• Efficient synthesis and stabilization of HMF are crucial for its industrial application.

Purpose of the Study:

• To develop an efficient method for synthesizing 5-hydroxymethylfurfural (HMF) from monosaccharides.
• To improve HMF yield and prevent product degradation using a biphasic reaction system.
• To investigate the selective recovery of HMF from the reaction mixture.

Main Methods:

• Synthesis of HMF from monosaccharides in a microreactor.
• Utilized a biphasic reaction system with segmented flow for simultaneous reaction and extraction.
• Employed a Lewis acid catalyst to facilitate glucose isomerization to fructose.
• Evaluated HMF extraction efficiency using partition coefficients.
• Developed a microextraction system for selective HMF recovery.

Main Results:

• Achieved an 85 mol % HMF yield under optimized conditions (180 °C, 47 min).
• The biphasic system effectively extracted and stabilized HMF, minimizing degradation.
• Demonstrated selective recovery of HMF from the extraction phase.
• Identified glucose isomerization to fructose as a key reaction step.

Conclusions:

• The microreactor-based biphasic system is highly effective for HMF synthesis.
• Immediate product extraction significantly enhances HMF yield and stability.
• The developed method offers a promising route for efficient HMF production and recovery.