申请人:BASF Aktiengesellschaft
公开号:US04116982A1
公开(公告)日:1978-09-26
The new product 3-oximino-4-oxo-2,5-dimethyl-tetrahydrofuran is manufactured by oximation of the new product 3-carboxy-4-oxo-2,5-dimethyl-tetrahydrofuran with aqueous nitrous acid, nitrite esters or nitrosyl chloride. Because of its fine caramel-like fragrance it may be used for the manufacture of scents and flavor materials. In addition it presents an advantageous method of synthesis of the sought-after flavor material 4-oxo-3-hydroxy-2,5-dimethyl-4,5-dihydrofuran (furaneol).
新产品3-氧代肟基-4-酮基-2,5-二甲基四氢呋喃是通过将新产品3-羧基-4-酮基-2,5-二甲基四氢呋喃与水合亚硝酸、亚硝酸酯或亚硝酰氯反应制得的。由于其类似焦糖的香气,可用于香料和风味材料的制造。此外,它还提供了一种优越的合成方法,用于制造所需的风味物质4-酮基-3-羟基-2,5-二甲基-4,5-二氢呋喃(呋喃醇)。