Re‐investigation of the l‐proline catalyzed double aldol cascade dimerization of succinaldehyde for the synthesis of a key bicyclic enal intermediate, pertinent in the field of stereoselective prostaglandin synthesis, is reported. The yield of this process has been more than doubled, from 14 % to a 29 % isolated yield on a multi‐gram scale (32 % NMR yield), through conducting a detailed study of the
报道了
L-脯氨酸催化的
琥珀醛双羟醛级联二聚反应用于合成立体选择性
前列腺素合成领域相关的关键双环烯醛中间体的重新研究。通过对反应溶剂、温度和浓度以及作为催化剂屏幕。通过 Δ 12-
前列腺素 J 3的全合成进一步证明了这种烯醛中间体的合成效用,这是一种具有已知抗白血病特性的化合物。