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Ruthenium catalyzed [4+2] cycloaddition of rac-cyclohexanediol 1f with dienes 4a-4h.a
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Yields are of material isolated by silica gel chromatography.
300 mol% diene.
150 °C.
The same products are generated in the same distribution using 1,5-hexadiene. See Supporting Information for further details and structural assignments.
