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Showing posts with label Annulation. Show all posts
Showing posts with label Annulation. Show all posts

Wednesday, 11 June 2014

Boronic Acid Catalyzed Annulation of a Pyran Ring



Boronic Acid Catalyzed Annulation of a Pyran Ring

A route to oxygenated pyrano[3,2-a]- and pyrano[2,3-a]carbazole alkaloids
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