SYNTHESIS OF THE ALKALOIDS JULANDINE AND IPALBIDINE - USE OF SILICON (IV) CHLORIDE

DOI: 10.1016/S0040-4039(01)93296-4

Source and publish data:

Tetrahedron Letters p. 2127 - 2130 (1981)

Update date:2022-08-03

Topics:

Authors:

Cragg, John E.

Hedges, Stuart H.

Herbert, Richard B.

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Article abstract of DOI:10.1016/S0040-4039(01)93296-4

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).

Full text of DOI:10.1016/S0040-4039(01)93296-4

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