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Copper-catalysed enantioselective intramolecular C–H insertion reactions of α-diazo-β-keto esters and α-diazo-β-keto phosphonates

✍ Scribed by Slattery, Catherine N.; Maguire, Anita R.

Book ID: 120938011
Publisher: Elsevier Science
Year: 2013
Tongue: French
Weight: 285 KB
Volume: 54
Category: Article
ISSN: 0040-4039
DOI: 10.1016/j.tetlet.2013.03.078

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## Abstract Chemoselective cross‐metathesis of unsaturated α‐diazo‐β‐keto esters using Grubbs’ 2^nd^ generation catalyst, followed by Rh~2~(OAc)~4~‐catalysed tandem carbonyl ylide formation‐intramolecular cycloaddition is demonstrated. The two different catalytic metallocarbene transfer reactions h