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Regioselective Synthesis of Ethyl Pyrazolecarboxylates from Ethyl 3-[(Dimethylamino)methylidene]pyruvate and Diethyl 3-[(Dimethylamino)methylidene]-2-oxosuccinate. Isolation of Ethyl 4,5-Dihydro-1-heteroaryl-5-hydroxy-1H-pyrazole-5-carboxylates as Stable Intermediates in the Pyrazole Ring Formation.
Andrej Hanzlowsky, Blanka Jelencic, Simon Recnik, Jurij Svete, Amalija Golobic, Branko StanovnikVolume:
34
Année:
2003
Langue:
english
Pages:
1
DOI:
10.1002/chin.200345099
Fichier:
PDF, 157 KB
english, 2003