SYNTHESIS AND UNAMBIGUOUS ASSIGNMENT OF STRUCTURE TO PYRANOPYRAZOL-4(1H)-ONES AND -4(2H)-ONES

DOI: 10.1246/cl.1986.295

Source and publish data:

Chemistry Letters p. 295 - 298 (1986)

Update date:2022-08-11

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Authors:

Cantos, Albert

March, Pere De

Moreno-Manas, Marcial

Pla, Anna

Sanchez-Ferrando, Francisco

Virgili, Albert

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Article abstract of DOI:10.1246/cl.1986.295

A clean synthesis of pyranopyrazolones is described.The reactions of 4-chloro-3-(1-chlorovinyl)-6-methyl-2-pyrone with arylhydrazines give pyrano<4,3-c>pyrazol-4(2H)-ones as the only identified products.However, the isomeric pyrano<4,3-c>pyrazol-4(1H)-one

Full text of DOI:10.1246/cl.1986.295

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