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ChemicalBook CAS DataBase List Butanoic acid, 3-(1,5-dihydro-3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-ylidene)-, ethyl ester
87343-64-4

Butanoic acid, 3-(1,5-dihydro-3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-ylidene)-, ethyl ester synthesis

1synthesis methods
74169-52-1 Synthesis
Pyrano[2,3-c]pyrazol-6(1H)-one,3,4-dimethyl-1-phenyl-

74169-52-1
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Butanoic acid, 3-(1,5-dihydro-3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-ylidene)-, ethyl ester

87343-64-4
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-

Yield:87343-64-4 5% ,74169-52-1 25 % Spectr.

Reaction Conditions:

in acetic acid; for 0.5 h;Heating;

References:

Maquestiau, A.;Haverbeke, Y. van;Eynde, J.-J. Vanden [Bulletin des Societes Chimiques Belges,1983,vol. 92,# 5,p. 451 - 458]