4431-83-8Relevant articles and documents
Preparation method of bis(dimethoxyethoxy)methane
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Paragraph 0041-0056, (2019/12/08)
Relating to the technical field of chemical synthesis, the invention discloses a preparation method of bis(dimethoxyethoxy)methane. The method includes the steps of: subjecting ethylene glycol monomethyl ether and formaldehyde to aldol condensation reaction under the action of an acid catalyst to prepare bis(dimethoxyethoxy)methane; wherein the molar ratio of formaldehyde to ethylene glycol monomethyl ether is 1:2-4; the dosage of the acid catalyst is 0.1-10%; the reaction temperature is 60-140DEG C, and the reaction time is 0.5-24h. The method provided by the invention utilizes acid to catalyze the reaction of ethylene glycol monomethyl ether and formaldehyde to generate bis(dimethoxyethoxy)methane, and belongs to economical reaction, the product includes water and is free of byproduct, and the catalyst has small corrosion to equipment, therefore the method is a clean bis(dimethoxyethoxy)methane synthesis method capable of recycling the catalyst, and is suitable for industrial continuous production.
Preparation of Cyclic Ethers via a Transacetalization-Cationic Cyclization Sequence
Nikolic, Nikola A.,Gonda, Elizabeth,Longford, C. P. Desmond,Lane, Nancy T.,Thompson, David W.
, p. 2748 - 2751 (2007/10/02)
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Formals.
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, (2013/12/13)
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