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Conversion of 2-aryl-4-dichloromethylen-5(4H)oxazolones to 5-acylamino-substituted pyrimidine bases

✍ Scribed by V. M. Prokopenko; V. N. Sviripa; S. G. Pil’o; V. S. Brovarets; A. N. Chernega; B. S. Drach


Book ID
111460025
Publisher
Springer
Year
2009
Tongue
English
Weight
198 KB
Volume
79
Category
Article
ISSN
1070-3632

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📜 SIMILAR VOLUMES


5(4H)-Oxazolones. Part X. Acid and base
✍ Maria Luisa Gelmi; Francesca Clerici; Alessandra Melis 📂 Article 📅 1997 🏛 Elsevier Science 🌐 French ⚖ 757 KB

A bstract:~(Z-Oxa-alkylidene)-~4~~x~olones (azlactones) 1 can be transformed in acidic conditions (anhydrous HBrlCHC13) into 5-alkylidene-3-benzoyI~~2(S~-furawnes 2 which have Z configuration at the exocyclic double bond. The same reaction conducted in acetic acid as solvent gives. besides the alkyh