Unexpected result of thiophosphorylation of 6-aminopyrano[2,3-c]pyrazole-5-carbonitrile derivative
The reaction of 6-amino-3-methyl-4-(2,4-dichlorophenyl)-2,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile with phosphorus sulfide in boiling pyridine unexpectedly leads to the formation of a not previously described heterocyclic system—[1,2]oxaphosphinino[6,5-c]pyrazole derivative. Structure of the ob...
Tallennettuna:
| Päätekijät: | , , , , , |
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| Aineistotyyppi: | Статья |
| Kieli: | English |
| Julkaistu: |
Pleiades Publishing
2019
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| Aiheet: | |
| Linkit: | https://dspace.ncfu.ru/handle/20.500.12258/8339 |
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| Yhteenveto: | The reaction of 6-amino-3-methyl-4-(2,4-dichlorophenyl)-2,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile with phosphorus sulfide in boiling pyridine unexpectedly leads to the formation of a not previously described heterocyclic system—[1,2]oxaphosphinino[6,5-c]pyrazole derivative. Structure of the obtained compound was proved using 2D NMR spectroscopy and X-ray diffraction analysis |
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