| Autor: |
KOLLENZ, G, HILLER, W, AKKURT, MEHMET, FABIAN, WMF, AKCAMUR, Y, KOK, TR, TECZAN, M |
| Jazyk: |
němčina |
| Rok vydání: |
1992 |
| Popis: |
4-Benzoyl-5-phenylfuran-2,3-dione (1) and the urethanes 2 combine under loss of carbon monoxide yielding the open chain dibenzoylacetic acid derivatives 3 and 4. 3a, b only can be cyclized to the oxazinone 5. The keto-enole tautomerism 3 half arrow right over half arrow left 4 is further investigated with aid of semiempirical quantum chemical calculations, based upon the molecular geometry of 3a, deduced from an X-ray study. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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