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Catalytic asymmetric CH activation of sp3 hybridized CH bonds by means of carbenoid CH insertions: applications in organic synthesis

✍ Scribed by Huw M.L. Davies

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
393 KB
Volume
189
Category
Article
ISSN
1381-1169

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✍ Pompiliu S. Aburel; Kjell Undheim 📂 Article 📅 1998 🏛 Elsevier Science 🌐 French ⚖ 137 KB

A simple one-pot procedure is described for the preparation of spiro [4,4]nonane-2,7-dione derivatives from open chain bis(oc-diazoketones). The reactions proceed by an intramolecular Rh(II)carbenoid insertion into a methylene C-H bond yielding a cyclopentane which subsequently undergoes C-H methine