6S)-5-acetoxy-6-hexadecanolide and its unnatural (5R,6R)-diastereomer in 68% and 54% overall yield by a route involving an organocatalyzed epoxidation of naturally occurring cis-5-hexadecenoic acid and diastereodivergent esterification is reported. The investigation of a dynamic kinetic asymmetric transformation (DYKAT) as an alternate strategy for preparing the target MOPs is also discussed, however this approach
蚊子产卵信息素(MOP)(5 R,6 S)-5-乙酰氧基-6-
十六烷化物及其非天然(5 R,6 R)-非对映异构体的合成,其有机收率可达68%和54%。据报道天然存在的顺式-5-
十六碳烯酸的环氧化和非对映异构的酯化反应。还讨论了动态动力学不对称转化(DYKAT)作为制备目标MOP的替代策略的研究,但是由于酮副产物的形成抑制了DYKAT过程中
脂肪酶介导的乙酰化步骤,因此该方法未成功。