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Bromoallenes as Allyl Dication Equivalents in the Presence or Absence of Palladium(0): Direct Construction of Bicyclic Sulfamides Containing Five- to Eight-Membered Rings by Tandem Cyclization of Bromoallenes.

โœ Scribed by Hisao Hamaguchi; Shohei Kosaka; Hiroaki Ohno; Nobutaka Fujii; Tetsuaki Tanaka

Publisher
John Wiley and Sons
Year
2007
Weight
27 KB
Volume
38
Category
Article
ISSN
0931-7597

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Bromoallenes as Allyl Dication Equivalen
Bromoallenes as Allyl Dication Equivalents in the Presence or Absence of Palladium(0): Direct Construction of Bicyclic Sulfamides Containing Five- to Eight-membered Rings by Tandem Cyclization of Bromoallenes
โœ Hisao Hamaguchi; Shohei Kosaka; Hiroaki Ohno; Nobutaka Fujii; Tetsuaki Tanaka ๐Ÿ“‚ Article ๐Ÿ“… 2007 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 365 KB ๐Ÿ‘ 1 views

## Abstract A highly regioselective synthesis of bicyclic sulfamides is described. Based on our recent discovery that bromoallenes can act as allyl dication equivalents in the presence of a palladium catalyst and alcohol, we investigated tandem cyclization of bromoallenes bearing a sulfamide group.