Syntheses of (+)- and (-)-Methyl 8-Epinonactate and (+)- and (-)-Methyl Nonactate
作者:Aleksander Warm、Pierre Vogel
DOI:10.1002/hlca.19870700319
日期:1987.5.6
In four synthetic steps, (+)- and (–)-methyl 8-epinonactate ((+)- and (–)−4) have been derived from (+)- and (–)-7-oxabicyclo[2.2.1]heptan-2-one ((+)- and (–)−9), respectively. The (+)- and (–)-methyl nonactate ((+)- and (–)−3) were obtained from (+)- and (–)−4, respectively, by Mitsunobu displacement reactions. Optical resolution of (±)−9via chromatographic separation of the corresponding N-methy
在四个合成步骤中,由(+)-和(-)-7-氧杂双环[2.2.1]衍生了(+)-和(-)-甲基8-己烯酸甲酯((+)-和(-)- 4)。 ] heptan-2-one((+)-和(–)− 9)。(+)-和(-)-甲基壬酸酯((+)-和(-)- 3)分别通过Mitsunobu置换反应从(+)-和(-)- 4获得。的(±)光学拆分- 9通过相应的色谱分离Ñ甲基小号-烷基-小号-phenylsulfoximides 24和25 - ,得到起始原料(+) -和( - )9分别。