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Substrate scope studies for hydrazine-catalyzed RCCOM of salicylaldehyde allylic ethers.a
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Conditions: substrate (0.1 mmol) and catalyst 8•(TFA)2 (10 mol %) in 0.5 mL of ethanol were heated to 140 °C in a 5 mL sealed tube for 12 h. Yields were determined on purified products.
20 mol% catalyst used.
Isopropanol was used as solvent.
