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1,5-Phosphonium betaines from N-triflylpropiolamides, triphenylphosphane, and active methylene compounds
N-Phenyl-N-(trifluoromethylsulfonyl)propiolamides react with triphenylphosphane in the presence of various active methylene compounds CH(2)XY in a 1:1:1 molar ratio to furnish 1-phosphonium-5-oxabetaines, Ph(3)P(+)–C(R)=CH–C(O(–))=CXY. These betaines are formed preferentially, but not exclusively, a...
| Autores principales: | , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
Beilstein-Institut
2019
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6839568/ https://www.ncbi.nlm.nih.gov/pubmed/31728174 http://dx.doi.org/10.3762/bjoc.15.253 |