Preparation of New Nitrogen-bridged Heterocycles. 11. A New Synthetic Method of Pyrazolopyridines from the Alkaline Treatment of 1-pyridinium Salts

DOI: 10.1246/bcsj.58.1432

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Bulletin of the Chemical Society of Japan p. 1432 - 1442 (1985)

Update date:2022-07-29

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Authors:

Kakehi, Akikazu

Ito, Suketaka

Ito, Masayoshi

Yotsuya, Toshiaki

Nagata, Kenji

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Article abstract of DOI:10.1246/bcsj.58.1432

Alkaline treatment of 1-<(acylmethylthio)methyleneamino>pyridinium halides gave unexpectedly 3-acyl- or 3-(acylthio)pyrazolo<1,5-a>pyridine derivatives in 35-87percent yields.Some 4,4a-dihydropyrido<1,2-d><1,3,4>thiadiazine intermediates involved in these

Full text of DOI:10.1246/bcsj.58.1432

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