A direct preparation of 2-aryl-4-ethoxycarbonyl-3- pyrazolin-5-ones from aryl hydrazines

DOI: 10.1016/S0040-4020(01)89994-4

Source and publish data:

Tetrahedron p. 607 - 616 (1987)

Update date:2022-09-26

Topics:

Authors:

Taylor, Andrew W.

Cook, Richard T.

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Article abstract of DOI:10.1016/S0040-4020(01)89994-4

Aryl hydrazines (1) possessing an electron-withdrawing substituent on the phenyl ring, on treatment with diethyl (ethoxymethylene)malonate in ethanolic sodium ethoxide solution, have directly afforded 2-aryl-4-ethoxy-carbonyl-3-pyrazolin-5-ones (4). Spect

Full text of DOI:10.1016/S0040-4020(01)89994-4

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