Issue 7, 1977
From the journal:

Journal of the Chemical Society, Perkin Transactions 1

Nitrogen bridgehead compounds. Part 4. 1 → 3 N→C-acyl migration. Part 2

István Hermecz,   Zoltán Mészáros,   Lelle Vasvári-Debreczy,   Ágnes Horváth,   Gábor Horváth  and  Mariann Pongor-Csákvári  

Abstract

Ring closure of 2-substituted 3-(2-pyridylamino)acrylates (1) in phosphoryl chloride–polyphosphoric acid gives pyrido[1,2-a]pyrimidines (2), whereas (6-substituted 2-pyridyl) derivatives in Dowtherm A afford pyrido[1,2-a]-pyrimidines (2) and 1,8-naphthyridines (3). The 6-substituted pyrido[1,2-a]pyrimidines (2) can be converted thermally into 1,8-naphthyridines (3) by 1 → 3 N→C-acyl migration. Similar acyl migrations can be observed in other such systems.

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Article information

DOI
https://doi.org/10.1039/P19770000789
Article type
Paper

J. Chem. Soc., Perkin Trans. 1, 1977, 789-795

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Nitrogen bridgehead compounds. Part 4. 1 → 3 N→C-acyl migration. Part 2

I. Hermecz, Z. Mészáros, L. Vasvári-Debreczy, Á. Horváth, G. Horváth and M. Pongor-Csákvári, J. Chem. Soc., Perkin Trans. 1, 1977, 789 DOI: 10.1039/P19770000789

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