Enamine chemistry – XV. The reaction of
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J.Ø. Madsen; S.-O. Lawesson
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Article
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2010
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Wiley (John Wiley & Sons)
⚖ 509 KB
## Abstract Reaction of cyclohexanone enamines with α‐chloroacrylonitrile and methyl α‐chloroacrylate in polar solvents leads to hexahydroindolium salts of type 3. In ether solution at low temperature cyclobutanes, 9, are produced.