Reaction of Ketophosphonium Ylides with Dimethyl Acetylenedicarboxylate
The reaction of ketophosphonium ylides with dimethyl acetylenedicarboxylate in aprotic solvents gave mixtures of Z and E alkene products. Under protic conditions the initial Michael adduct was protonated and gave Z and E isomers of the alkene product as well. Depending on the alkyl group of the keto...
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| Veröffentlicht in: | Phosphorus, sulfur, and silicon and the related elements sulfur, and silicon and the related elements, 1994-05, Vol.90 (1-4), p.53-57 |
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| Format: | Artikel |
| Sprache: | eng |
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| Online-Zugang: | Volltext |
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| Zusammenfassung: | The reaction of ketophosphonium ylides with dimethyl acetylenedicarboxylate in aprotic solvents gave mixtures of Z and E alkene products. Under protic conditions the initial Michael adduct was protonated and gave Z and E isomers of the alkene product as well. Depending on the alkyl group of the ketoylide, different product ratios were seen. |
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| ISSN: | 1042-6507 1563-5325 |
| DOI: | 10.1080/10426509408016386 |