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Generation and reactions of diazo-3,3-dideuterio-2-methylidenecyclopropane and isomerization of 3",3"-dideuterio-2"-methylidenespiro[4,5-dihydropyrazole-5,1"-cyclopropanes] into isopropenylpyrazoles

✍ Scribed by I.P. Klimenko; E.V. Shulishov; Yu.V. Tomilov; O.M. Nefedov


Book ID
110442241
Publisher
Springer
Year
2003
Tongue
English
Weight
329 KB
Volume
52
Category
Article
ISSN
1573-9171

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Synthesis and Structures of Two Isomeric
✍ Sergey A. Malashikhin; Anthony Linden; Heinz Heimgartner; Ludmila L. Rodina; Val 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 German ⚖ 214 KB

## Abstract The two regioisomeric 4‐diazo‐2,3,4,5‐tetrahydrofuran‐3‐ones **6** and **7** were prepared __via__ the common intermediate 2,3,4,5‐tetrahydro‐2,2‐dimethyl‐5,5‐diphenylfuran‐3‐one (**8**). Diazo transfer with 2,4,6‐triisopropylbenzenesulfonyl azide yielded **6**, whereas **7** was obtain