Reactions of Azines. 9. Preparation of 4,5-Dihydropyrazolopyridines, 6,7-Dihydropyrazolopyridines, and Pyrazolopyridines

DOI: 10.1021/jo00383a028

Source and publish data:

Journal of Organic Chemistry p. 1319 - 1324 (1987)

Update date:2022-07-29

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Authors:

Schweizer, Edward E.

Haynes, John E.

Hirwe, S. N.

Rheingold, Arnold A.

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Article abstract of DOI:10.1021/jo00383a028

The reactions of (3,4-diaza-2,4,6-heptatrienylidene)triphenylphosphoranes 12 with ketenes 15 provide a general route to 4,5-dihydropyrazolo<1,5-a>pyridines 18 via the thermal rearrangements of the allenylazine 16 intermediates.When one of the substituents

Full text of DOI:10.1021/jo00383a028

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