Organocatalytic Enantioselective Decarboxylative Aldol Reaction of Malonic Acid Half Thioesters with Aldehydes
作者:Han Yong Bae、Jae Hun Sim、Ji-Woong Lee、Benjamin List、Choong Eui Song
DOI:10.1002/anie.201306297
日期:2013.11.11
Copycat: A highly enantioselective biomimetic aldol reaction of malonic acid half thioesters with a variety of aldehydes affords optically active β‐hydroxy thioesters by employing the cinchona‐derived sulfonamide organocatalyst 1. The synthetic utility of this protocol was demonstrated by performing formal syntheses of the antidepressants (R)‐fluoxetine, (R)‐tomoxetine, (−)‐paroxetine, and (R)‐duloxetine
模仿:丙二酸半硫酯与多种醛类的高度对映选择性仿生羟醛缩合反应,通过使用金鸡纳衍生的磺酰胺有机催化剂1,提供了光学活性的β-羟基硫代酯。通过执行抗抑郁药(R)-氟西汀,(R)-托莫西汀,(-)-帕罗西汀和(R)-度洛西汀的正式合成,证明了该方案的合成效用。