Hexacarbonylmolybdenum-induced NN bond cleavage of pyrazoles. Conversion of 1-acylpyrazoles to pyrimidines.

M Nitta, T Hamamatsu, H Miyano

文献索引：Nitta, Makoto; Hamamatsu, Tatsuo; Miyano, Hiroyuki Bulletin of the Chemical Society of Japan, 1988 , vol. 61, # 12 p. 4473 - 4475

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被引用次数: 2

摘要

[Mo (CO) 6]-induced reactions of 1-acyl-3, 5-disubstituted pyrazoles underwent N–N bond cleavage and subsequent cyclocondensation to give pyrimidines as well as deacylation to give 3, 5-disubstituted pyrazoles. Under similar conditions, 1, 3, 5-trisubstituted pyrazoles, which have no electron-withdrawing substituent on N1, gave no product, except for the starting materials.