Description
Fluorinated liquid 1,1,1,2,3,4,4,5,5,5,-Decafluoro-3-methoxy-2-(trifloromethyl)pentane is a kind of heat stable, perfluorinated liquid mainly used as industrial and conductive liquid. Due to its chemical inertness, 1,1,1,2,3,4,4,5,5,5,-Decafluoro-3-methoxy-2-(trifloromethyl)pentane can be used as single-phase or two-phase coolant for supercomputer systems and military sensitive electronic components. Because of its very high insulation, it can be used to cool high-voltage transformers and high-power electronic components. In the semiconductor industry, this liquid is used primarily as a constant temperature coolant for etching equipment, ion implantation equipment and chemical vapour deposition (CVD). Because the pour point of 1,1,1,2,3,4,4,5,5,5,-Decafluoro-3-methoxy-2-(trifloromethyl)pentane is very low, It can be used for cold and hot shock test and other tests.
Uses
1,1,1,2,2,3,4,5,5,5-Decafluoro-3-methoxy-4-(trifluoromethyl)pentane is used in preparation method of isolated Hydrofluoroether.
Application
1,1,1,2,2,3,4,5,5,5-Decafluoro-3-methoxy-4-(trifluoromethyl)pentane, also known as HFE-7300 or DMTP, is a separated hydrofluoroether fluid with the molecular formula C7H3F13O. It can be used as a fluorinated solvent to dissolve π-allylnickel catalysts and carry out diblock copolymerisation reactions, thereby preparing homogeneous solutions of activated polymers or core-crosslinked nanostructures [1–2]. In electrolyte systems, it acts as a fire-suppressing component and exhibits extremely high stability towards metallic sodium; compared with traditional carbonate solvents, it possesses a higher binding energy with functional molecules such as TTE [3]. In electrochemical interface research, it serves as a fluorinated phase to support the electrolyte [4].
Synthesis
1,1,1,2,3,4,4,5,5,5,-Decafluoro-3-methoxy-2-(trifloromethyl)pentane is prepared by the reaction of Methyl methanesulfonate and perfluoro-2,3-epoxy-2-methylpentane. The specific synthesis steps are as follows:
(1). Clean and dry the 500ml reaction flask first; (2). Add 200mL of diethylene glycol dimethyl ether to the flask, turn on the stirring, and add 58g (1mol) of anhydrous potassium fluoride and 52.86g (0.2mol) of 18-crown-6 under stirring; (3). Stir for 10 minutes to fully dissolve anhydrous potassium fluoride and 18-crown ether-6, then add 158g (0.5mol) of perfluoro-2-methyl 2,3-epoxypentane to obtain a solution; (4). Heat the solution water bath to 50°C, keep the temperature constant at about 50°C, slowly add 71.59g (0.65mol) methyl methanesulfonate dropwise with a dropping funnel; (5). Control the dropping time of methyl methanesulfonate for about 2h. After the dropping, the solution will continue to be kept at a constant temperature of 50°C for 3h; (6). After the reaction is completed, cool to room temperature, and then take out the mixed liquid for rectification to obtain the product. Result: The mass of hydrofluoroether obtained is 164.22g, of which 1,1,1,2,2,3,4,5,5,5-decafluoro-3-methoxy-4-(trifluoromethyl)-pentane The content is 96.79%, the residue of perfluoro-2-methyl 2,3-epoxypentane is 0.07%, the conversion rate of perfluoro-2-methyl 2,3-epoxypentane is 99.93%, 1,1,1 The yield of 2,2,3,4,5,5,5-decafluoro-3-methoxy-4-(trifluoromethyl)-pentane was 90.83%.
References
[1] Cheng, Y., Wakiya, T., Hifumi, R., Inagi, S., Tomita, I. (2024). Preparation of superhydrophobic surfaces and slippery liquid-infused porous surfaces based on core-cross-linked nanostructured materials obtained by living coordination block copolymerization through PISA process.
Polymer,
294, Article 126686.
https://doi.org/10.1016/j.polymer.2024.126686[2] Cheng, Y., Wakiya, T., Inagi, S., Takata, T., omita, I. (2021). Creation of polymeric nanostructures by living coordination block copolymerization of allene derivatives with fluoroalkyl substituents under polymerization-induced self-assembly conditions and their application to superhydrophobic surfaces†.
Polymer Chemistry,
12 46, Pages 6771-6779.
https://doi.org/10.1039/d1py01108a[3]
Liu, X., Zheng, X., Deng, Y., Qin, X., Huang, Y., Dai, Y., Wu, W., Wang, Z., Luo, W. (2021). Implanting a Fire‐Extinguishing Alkyl in Sodium Metal Battery Electrolytes via a Functional Molecule. Advanced Functional Materials, 32(5).
https://doi.org/10.1002/adfm.202109378
[4]
Ishii, K., Akutsu-Suyama, K., Yamada, N. L., Yokoyama, Y., Sakka, T., Nishi, N. (2025). Accumulation of ionic-liquid ions at the electrochemical liquid/liquid interface between water and a fluorous solvent studied using neutron reflectometry. Electrochimica Acta, 513, 145563.
https://doi.org/10.1016/j.electacta.2024.145563
