Skeletal Rearrangements of Rings C and D of the Kaurene and Beyerene Tetracyclic Diterpenoids
2018 ◽
Vol 42
(4)
◽
pp. 175-180
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Keyword(s):
The skeletal rearrangement of the bicyclo[3.2.1]octane portion of rings C and D of the kaurene and beyerene tetracyclic diterpenoids are reviewed, revealing the tendency of the secondary carbocations to rearrange to tertiary carbocations with the eventual preferential formation of bicyclo[2.2.2]octanes. Under acid-catalysed conditions the variations in the products with the nucleophilicity of the counter ions suggest that the intervention of discrete rather than completely delocalised non-classical carbonium ions may be contributing to the reaction pathway.
2015 ◽
Vol 13
(9)
◽
pp. 2768-2775
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1970 ◽
Vol 92
(5)
◽
pp. 1432-1434
◽
2011 ◽
Vol 7
◽
pp. 839-846
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Keyword(s):
2001 ◽
Vol 74
(3)
◽
pp. 385
◽
Keyword(s):
2019 ◽
2018 ◽