Cyclocondensation of [1-Cyano-2-(methylsulfanyl)vinyl]triphenylphosphonium Iodide with Amidine Nucleophiles View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2005-04

AUTHORS

O. B. Smolii, L. V. Muzychka, A. N. Chernega, B. S. Drach

ABSTRACT

The substituted vinylphosphonium salt (E)-MeSCH=C(CN)P+Ph3I− readily cyclizes under the action of benzamidine and 3-amino-s-triazole, but it does not enter cyclocondensation with 2-aminopyridine. The structure of the cyclization product with 3-amino-s-triazole was confirmed by its transformation to 7-imino-6-(triphenylphosphoranylidene)-6,7-dihydro-s-triazolo[1,5]pyrimidine which was identified by X-ray diffraction. This stabilized ylide and its analogs proved useful starting materials for regioselective syntheses of 2-R-4-alkyl-4,7-dihydro-s-triazolo[1,5-a]pyrimidin-7-ones. More... »

PAGES

527-532

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s11176-005-0266-2

DOI

http://dx.doi.org/10.1007/s11176-005-0266-2

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1000777724


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