The Sommelet Reaction

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IN a communication under this heading in Nature of May 8, p. 723, Messrs. Anyal and Rassach refer to a paper by Graymore and Davies1, in which it was shown that a mixture of benzylamine and formaldehyde gives benzaldehyde in good yield on heating in solution with hexamine. They say that, contrary to Graymore and Davies' findings, benzaldehyde can be obtained from benzylamine hydrochloride in the absence of hexamine. In a later paper by Graymore2, it is shown that hexamine may be dispensed with, and benzaldehyde produced by heating methylene benzylamine (or, for that matter, a mixture of benzylamine and formaldehyde) with two-thirds of the quantity of hydrochloric acid, as required by the equation :

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  1. 1

    Graymore, J., and Davies, D. R., J. Chem. Soc., 293 (1945).

  2. 2

    Graymore, J., J. Chem. Soc., 1116 (1947).

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GRAYMORE, J. The Sommelet Reaction. Nature 162, 154 (1948) doi:10.1038/162154a0

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