新規エーテル系溶剤シクロペンチルメチルエーテル(CPME)の開発

抄録

Cyclopentyl methyl ether (CPME) has become available in a commercial quantity since Nov. 2005 from Zeon Corporation. High boiling point as well as preferable characters (low formation of peroxides, relative stability under acidic or basic conditions, formation of azeotropes with water, a low affinity for water and small evaporation energy compared to other ethers coupled with narrow explosion range) make CPME as an affordable and alternative solvent with future prosperity. It is useful for general organometallic reactions including Grignard reactions, enolate formation, Claisen condensation, reductions and Pd-based transformations such as Buchwald-Hartwig amination. Consequently, it is safe to conclude that CPME is emerging as a potential alternative for THF, dioxane and DME. Due to these unique properties and applications, CPME possesses particular advantages and renders some conventional reaction sequences in one pot or easier process as a result of solvent unification.

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