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Total Syntheses of Hyperforin and Papuaforins A-C, and Formal Synthesis of Nemorosone through a Gold(I)-Catalyzed Carbocyclization

✍ Scribed by Bellavance, Gabriel; Barriault, Louis

Book ID
121837988
Publisher
John Wiley and Sons
Year
2014
Tongue
English
Weight
573 KB
Volume
53
Category
Article
ISSN
0044-8249

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## Abstract A concise entry into the bicyclic cyclopropyl ketone derivatives **5** and **6** by way of a gold‐catalyzed Ohloff–Rautenstrauch‐type enyne cycloisomerization is described. The required substrates were prepared by an asymmetric addition of the branched allylzinc reagent **21** to the al