Frequentreferencelamade lnthe lIteraturea to the Mele-Alder reaatlon of 2,+kuethylquinoxallne (purportedly reacting in itr tautomeric ram I) vlth maleic anhydride to give the "edduct" 11s or IIb. This cm-lr re-ported= to ha= the elementary analyale C14HLpllnOe, not to mlt below 300Β°, to be yellow, r
β¦ LIBER β¦
The structure of the diels-alder adduct formed from thymoquinone and piperylene
β Scribed by James J. Sims; V.K. Honwad
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- French
- Weight
- 151 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0040-4039
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A reliable and novel synthetic route for the preparation of prop-l-ene-l,3-sultone (1) has been developed. An overall yield of 34% could be achieved for this five-step synthesis. The Diels-Alder reactions of 1 with a variety of dienes were investigated for the first time and achieved with good chem