Tetrahedron Letters p. 2127 - 2130 (1981)
Update date:2022-08-03
Topics:
Cragg, John E.
Hedges, Stuart H.
Herbert, Richard B.
Titanium (IV) chloride and silicon (IV) chloride with high oxygen affinity are the best Lewis acid catalysts, of a number tested, for cyclisation of an enamine-ketone (1) leading to the alkaloid, julandine (2); cyclisation of (6) in methanol solution without catalyst yields O-methylipalbidine (7).
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Doi:10.1016/j.tetlet.2004.03.163
(2004)Doi:10.1016/j.steroids.2008.09.006
(2009)Doi:10.1016/j.bmcl.2013.03.081
(2013)Doi:10.1246/bcsj.60.3065
(1987)Doi:10.1002/zaac.200700327
(2008)Doi:10.1016/S0040-4039(00)96587-0
(1987)
