作者:Michael D Squire、Amanda Burwell、Gregory M Ferrence、Shawn R Hitchcock
DOI:10.1016/s0957-4166(02)00486-x
日期:2002.9
Enantiomerically enriched vic-amino alcohols derived from d-camphor have been synthesized by condensation of the highly electrophilic N-nitroimine of d-camphor with ethanolamine, (R)-phenylglycinol and (1R,2S)-norephedrine to afford imines 8a–c. The iminobornanes were reduced with lithium aluminum hydride to afford the corresponding amines in good yield (78–88%). The stereochemistry of the reduction
d-樟脑中富含对映体的vic-氨基醇是通过将d-樟脑的高度亲电N-硝基亚胺与乙醇胺,(R)-苯基甘氨醇和(1R,2S)-去氧麻黄碱缩合而合成的,以提供亚胺8a – c。亚氨基硼烷用氢化铝锂还原可得到相应的胺,收率很好(78-88%)。还原的立体化学通过N-亚硝化去氧麻黄碱-樟脑衍生物12的X射线晶体学研究得到证实。