ChemInform Abstract: Heterocyclically Br
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A. TAKO; K.-H. ONGANIA; K. WURST
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Article
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2010
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John Wiley and Sons
⚖ 35 KB
Heterocyclically Bridged Tricyclic β-Lactames: A Simple Synthesis of 1,2,2a,8a-Tetrahydro-3-oxa-1-aza-cyclobuta[b]naphthalen-2-ones. -The novel title heterocycles such as (VI) and (VII) are obtained via 6-exo-trig radical cyclization. The structure of compound (VIIb) is confirmed by X-ray analysis.