Tetrahedron Letters p. 6151 - 6154 (1985)
Update date:2022-08-04
Topics:
Kano, Kunio
Scarpetti, David
Anselme, Jean-Pierre
The treatment of ketal hydrazones of arylglyoxals (2) with 75percent sulfuric acid leads to 3-aroyl-4-phenyl-1-methylpyrazoles (6) as well as 4-phenyl-1-methylpyrazole (7) and the corresponding benzoic acids.Possible mechanisms are discussed.
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Doi:10.1007/BF00563609
()Doi:10.1021/ja01184a049
(1948)Doi:10.1021/jo01013a514
(1965)Doi:10.1016/j.ejmech.2008.01.029
(2008)Doi:10.1039/jr9590004110
(1959)Doi:10.1021/ja01495a051
(1960)
