A novel synthetic route to enantiomerically pure 1-benzyltetrahydroisoquinolines (1) was developed via the reaction of oxazolo[2, 3-a]tetrahydroisoquinoline (5) with benzyltriisopropoxytitanium compounds (10). This method was applied to the synthesis of (S)-trimetoquinol (1c; a bronchodilator).
Baxendale, Ian R.; Davidson, Thomas D.; Ley, Steven V., Heterocycles, 2003, vol. 60, # 12, p. 2707 - 2715
作者:Baxendale, Ian R.、Davidson, Thomas D.、Ley, Steven V.、Perni, Remedios H.
DOI:——
日期:——
SEKINE, YASUO;BROSSI, ARNOLD, J. NATUR. PROD., 53,(1990) N, C. 533-535
作者:SEKINE, YASUO、BROSSI, ARNOLD
DOI:——
日期:——
Total Synthesis of (<i>S</i>,<i>S</i>)-Tetramethylmagnolamine via Aerobic Desymmetrization
作者:Zheng Huang、Xiang Ji、Jean-Philip Lumb
DOI:10.1021/acs.orglett.9b03559
日期:2019.11.15
We describe a concise synthesis of the pseudodimeric tetrahydroisoqunoline alkaloid (S,S)-tetramethylmagnolamine by a catalytic aerobic desymmetrization of phenols. Desymmetrization reactions increase molecular complexity with high levels of efficiency, but those that do so by aerobic oxidation are uncommon. Our conditions employ molecular oxygen as an oxygen atom transfer agent and a formal acceptor