2997-06-0

Usage

Uses

Used in Polymer Production:
N-methyl-hexanediyldiamine is utilized as a crosslinking agent in the formation of various polymers, such as polyamides and polyurethanes. Its presence in these polymers enhances their strength and durability, making it a valuable component in the production process.
Used in Epoxy Resin Curing:
This chemical compound also serves as a curing agent in epoxy resins, playing a crucial role in the hardening and setting of these materials. Its use in this application contributes to the final properties of the cured epoxy, such as adhesion, flexibility, and chemical resistance.
Used as a Chemical Intermediate:
N-methyl-hexanediyldiamine is employed as a chemical intermediate in the synthesis of other compounds, showcasing its versatility and importance in the chemical industry.

Upstream product

• 67-56-1 methanol 
• 124-09-4 1,6-Hexanediamine 

Relevant academic research and scientific papers

Continuous chemoselective methylation of functionalized amines and diols with supercritical methanol over solid acid and acid-base bifunctional catalysts

The selective N-methylation of bifunctionalized amines with supercritical methanol (scCH3OH) promoted by the conventional solid acids (H-mordenite, β-zeolite, amorphous silica-alumina) and acid-base bifunctional catalysts (Cs-P-Si mixed oxide and γ-alumina) was investigated in a continuous-flow, fixed-bed reactor. The use of scCH 3OH in the reaction of 2-aminoethanol with methanol (amine/CH 3OH = 1/10.8) over the solid catalysts led to a significant improvement in the chemoselectivity of the N-methylation. Among the catalysts examined, the Cs-P-Si mixed oxide provided the most efficient catalyst performance in terms of selectivity and reactivity at 300 °C and 8.2 MPa; the N-methylation selectivity in the products reaching up to 94% at 86% conversion. The present selective methylation was successfully applied to the synthesis of N-methylated amino alcohols and diamines as well as O-methylated ethylene glycol. Noticeably, ethoxyethylamine was less reactive, suggesting that the hydroxy group of the amino alcohols is a crucial structural factor in determining high reactivity and selectivity, possibly because of the tethering effect of another terminus, a hydroxo group, to the catalyst surface. The magic-angle-spinning NMR spectroscopy and X-ray diffraction analysis of the Cs-P-Si mixed oxide catalyst revealed that the acidic and basic sites originate from P2O5/SiO2 and Cs/SiO2, respectively, and the weak acid-base paired sites are attributed to three kinds of cesium phosphates on SiO2. The weak acid-base sites on the catalyst surface might be responsible for the selective dehydrative methylation.