Disclosed are α-(ω-Cyanoalkanoyl)-γ-butyrolactone represented by the formula:
wherein n represents an integer of 7 to 11,
and a method for producing the same, which comprises reacting ω-cyano fatty acid ester represented by the formula:
NC-(CH₂)n-COOR (II)
wherein R represents an alkyl group having 1 to 4 carbon atoms and n has the same meaning as in the above,
with γ-butyrolactone in the presence of alkali metal alcoholate represented by the formula:
R′OM (III)
wherein R′ represents an alkyl group having 1 to 4 carbon atoms and M represents an alkali metal.
所公开的α-(ω-
氰基烷酰基)-
γ-丁内酯由式表示:
其中 n 代表 7 至 11 的整数、
以及一种生产该物质的方法,其中包括使由式.NC-(CH₂)代表的ω-
氰基
脂肪酸酯反应:
NC-(CH₂)n-COOR (II)
其中 R 代表具有 1 至 4 个碳原子的烷基,n 的含义与上文相同、
与
γ-丁内酯在碱
金属醇酸酯存在下进行反应,碱
金属醇酸酯的代表式为
R′OM (III)
其中 R′代表具有 1 至 4 个碳原子的烷基,M 代表碱
金属。