Unexpected epoxidation product in oxidation of N-tosyl-7-methoxy-1,3a,4,8b-tetrahydrocyclopenta[b]indole with potassium permanganate
作者:Rail R. Gataullin、Kyrill Yu. Suponitsky
DOI:10.1016/j.mencom.2009.09.019
日期:2009.9
An unexpected product of N-tosyl-7-methoxy-1,3a,4,8b-tetrahydrocyclopenta[b]indole oxidation with potassium permanganate under alkaline conditions was isolated. Along with (2R,3S,3aR,8bS)-N-tosyl-7-methoxy-2,3-dihydroxy-1,2,3,3a,4,8b-hexahydrocyclopenta[b]indole, (3SR,3aRS,8bSR)-N-tosyl-7-methoxy-3-hydroxy-1,2-epoxy-1,2,3,3a,4,8b-hexahydrocyclopenta[b]indole was formed.
分离出在碱性条件下用高锰酸钾氧化的N-甲苯磺酰基-7-甲氧基-1,3a,4,8b-四氢环戊[b]吲哚的意外产物。与(2R,3S,3aR,8bS)-N-甲苯磺酰基-7-甲氧基-2,3-二羟基-1,2,3,3a,4,8b-六氢环戊[b]吲哚,(3SR,3aRS,8bSR形成)-N-甲苯磺酰基-7-甲氧基-3-羟基-1,2-环氧-1,2,3,3a,4,8b-六氢环戊[b]吲哚。