Reaction of ethyl 2,3-butadienoate with aldehydes in the presence of DABCO gave ethyl 2-(1-hydroxyalkyl)-2,3-butadienoate (2) in 41–54% yields. The reaction in the presence of butyl lithium gave 2 in 36–60% yields accompanied by ethyl 2,4-di(1-hydroxyalkyl)-2,3-butadienoate.
在
DABCO 存在下,
2,3-丁二烯酸乙酯与醛反应生成 2-(1-羟基烷基)-
2,3-丁二烯酸乙酯(2),收率为 41-54%。在丁基
锂存在下进行反应,得到 2,4-二(1-羟基烷基)-
2,3-丁二烯酸乙酯,收率为 36-60%。