Reoptimization of the Organocatalyzed Double Aldol Domino Process to a Key Enal Intermediate and Its Application to the Total Synthesis of Δ<sup>12</sup>
-Prostaglandin J<sub>3</sub>
作者:Andrejs Pelšs、Narasimhulu Gandhamsetty、James R. Smith、Damien Mailhol、Mattia Silvi、Andrew J. A. Watson、Isabel Perez-Powell、Sébastien Prévost、Nina Schützenmeister、Peter R. Moore、Varinder K. Aggarwal
DOI:10.1002/chem.201802498
日期:2018.7.5
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。