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HRID 25892作成日:2026年10月23日

2-Butoxyethanol → 2-Butoxyethyl Levulinate

https://huagongshe.com/ja/reaction/25892

反応式

関与物質

役割名称HCID仕込み量
反応物2-ButoxyethanolHCID 8133—
反応物Levulinic AcidHCID 11579—
反応物Dibutyltin dioctanoateHCID 16683953—
溶媒O-XyleneHCID 7237—
生成物2-Butoxyethyl LevulinateHCID 21325643—

反応手順

2 -Butoxyethanol (Butyl Cellosolve) 354g (3 mol), 232g (2 mol) levulinic acid and 1.5g dibutyl tin dioctoate were heated with a xylene azeotrope for 24 hours 151°-177° to AN 2.3 while collecting 42g water. Product was washed with sat. NaHCO3 and water, dried with anhy. MgSO4 and distilled. Ester product was collected in fr 2 and 3 120°-131° 1 mm. Yield was 349g, 81%, 96% ester product by gc.

情報源と証拠

DOI10.6084/m9.figshare.5104873.v1
特許番号US04147686
出典データセットuspto-grants-1979_04
ORD IDord-abc3c1bef80649e3acc4e6b3f41db6cd
出典メモuspto-grants-1979_04