New Derivatives of Levulinic Acid. I. Synthesis of 2,3-Epoxy-3-Methyladipic Esters
作者:Eturô Maekawa、Masako Mizoguchi、Yoshio Ishii
DOI:10.1246/bcsj.28.54
日期:1955.1
Levulinic and monochloroacetic esters are condensed by sodium amide or potassium tert.-butoxide to give the corresponding 2, 3-epoxy-3-methyladipic esters.n-Butyl (B), 2-ethylhexyl (O), and lauryl (L) alcohols were used as alcoholic components of these starting esters. Although the yields were poor, nine new esters, namely the B-B, B-O, O-B, B-L, L-B, O-O, O-L, L-O,and L-L 2, 3epoxy-3-methyladipates
乙酰丙酸和一氯乙酸酯通过氨基钠或叔丁醇钾缩合得到相应的 2, 3-epoxy-3-methyladipic 酯。 正丁基 (B)、2-乙基己基 (O) 和月桂基 (L) 醇用作这些起始酯的醇组分。虽然收率很低,但获得了 9 种新酯,即 BB、BO、OB、BL、LB、OO、OL、LO 和 LL 2, 3epoxy-3-甲基己二酸酯。至于缩合剂,叔丁醇钾是最好的,氨基钠也有很好的效果,而乙醇钠和甲醇钠则没有得到所需的酯。这些新酯可用作聚氯乙烯的稳定增塑剂。