1.
Org Lett
; 11(10): 2189-92, 2009 May 21.
Article
in English
| MEDLINE
| ID: mdl-19371074
ABSTRACT
Bicyclic diazenium salts were efficiently prepared by a Lewis acid mediated intramolecular cycloaddition. Terminal olefins provided mixtures of fused and bridged bicyclic diazenium salts. The alpha-chloroazo cycloaddition precursors were conveniently prepared from the corresponding phenyl hydrazones by treatment with chlorodimethylsulfonium chloride.