Rhodium- and palladium-catalysed formation of conjugated mono- and bis-exocyclic dienes. 5-Exo-trig versus 6-endo-trig cyclisations
- 1 January 1984
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 16,p. 1073-1075
- https://doi.org/10.1039/c39840001073
Abstract
2-Bromo-1,6-dienes are catalytically cylised to give conjugated 5-membered bis-exocylic dines and 6-membered mono-exocyclic dienes by rhodium and palladium catalysts, the specificity for a 5- or 6-membered ring being a function of substrate, catalyst, and added base; 2-bromo-1,7-dienes cyclise regiospecifically to give 6-membered rings.Keywords
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