The Use of Pyrylium Tetrafluoroborate for the Stereoselective Synthesis of 2Z,4E-Dienals
- 1 January 1991
- journal article
- research article
- Published by Georg Thieme Verlag KG in Synthesis
- Vol. 1991 (04) , 320-322
- https://doi.org/10.1055/s-1991-26456
Abstract
The addition of organolithium reagents to pyrylium tetrafluoroborate followed by in situ electrocyclic ring opening of the intermediate 2H-pyrans gives the title Z,E-dienals with high stereoselectivity.Keywords
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