Organoiron complexes in organic synthesis. Part 7. Regio- and stereo-chemistry of ring connection reactions relevant to steroid and terpene synthesis. X-Ray crystal structure determination of tricarbonyl(methyl 1-[2–5-η-4-methoxy-1-methylcyclohexa-2,4-dienyl]-3-hydroxymethyl-3-methyl-2-oxocyclohexanecarboxylate)iron
- 1 January 1980
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 1
- No. 12,p. 2774-2780
- https://doi.org/10.1039/p19800002774
Abstract
Reaction of tricarbonyl(1–5-η-4-methoxy-1-methylcyclohexadienylium)iron hexafluorophosphate (1) with enolate anions of derivatives of methyl 2-oxocyclohexanecarboxylate and methyl 1-oxotetralin-2-carboxylate occurs with very high regioselectivity for the methylated dienylium terminus. The structure and stereochemistry of one of the products (18) was determined by X-ray crystallography and found to be in agreement with that derived from spectroscopic data.Keywords
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- Organoiron complexes in organic synthesis. Part 4. Direct ring connection between highly substituted centres. A potential approach to trichothecane synthesisJournal of the Chemical Society, Perkin Transactions 1, 1980