Piperidine derivatives. XXVII. The condensation of 4-piperidones and piperidinols with phenols

SM McElvain, RS Berger

Index: McElvain; Berger Journal of the American Chemical Society, 1955 , vol. 77, p. 2848

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Citation Number: 11

Abstract

1-Methyl-4-piperidone is condensed by hydrogen chloride with phenol and 2, 4- dimethylphenol to yield a 4-aryl-tetrahydropyridine (I1 and IV), but with 2, 6-dimethylphenol the diphenol IIIa is formed. Considerable amphoteric polymeric material is formed with the piperidone and phenol; similar polymers are the only reaction products where resorcinol or its monomethyl ether is used instead of phenol. l-Methyl-4-phenyl-4-hydroxypiperidine ...