Reaction of 5-Amino-1-phenylpyrazole-4-carbonitriles with Dimethyl Acetylenedicarboxylate. Synthesis and Structural Determination of Trimethyl 4,8-Dioxo-1-phenyl-4,5,5a,8-tetrahydro-1H-pyrazolo[3,4-e]indolizine-5,5a,6- tricarboxylate Derivatives

DOI: 10.1002/jhet.5570340244

Source and publish data:

Journal of Heterocyclic Chemistry p. 613 - 620 (1997)

Update date:2022-08-02

Topics:

Authors:

Tominaga, Yosbinori

Yoshioka, Noriko

Castle, Raymond N.

Luo, Jiann-Kuan

Hata, Tadasbi

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Article abstract of DOI:10.1002/jhet.5570340244

The reaction of 5-amino-1-phenylpyrazole-4-carbonitriles 1a-c with dimethyl acetylenedicarboxylate in the presence of potassium carbonate in dimethyl sulfoxide gave trimethyl 4,5,5a,8-tetrahydro-1-phenyl-4,8-dioxo-1H-pyrazolo[3,4-e]indolizine-5,5a,6- tric

Full text of DOI:10.1002/jhet.5570340244

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