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Synthesis 2000; 2000(1): 81-83
DOI: 10.1055/s-2000-6234
short paper
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An Efficient Ligand Exchange Reaction of (E)-[(β-(Trifluoromethanesulfonyloxy)ethenyl](phenyl)iodonium Triflates with Aryl- and Alkynyllithium Reagents Leading to Diaryl- and Alkynyliodonium Triflates

Namig Sh. Pirguliyev* , Valery K. Brel, Navruz G. Akhmedov, Nikolai S. Zefirov
  • *Department of Chemistry, Moscow State University, Moscow 119899, Russia; Fax +7 (0 95) 9 39 02 90
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Publication Date:
31 December 2000 (online)

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Reaction of (E)-[β-(trifluoromethanesulfonyloxy)-ethenyl](phenyl)iodonium triflates with aryl- and alkynyllithium reagents gave aryl(phenyl)- and alkynyl(phenyl)iodonium triflates in high yields and selectively. These reactions indicate that ligand exchange takes place efficiently at the hypervalent iodine atom and provides another approach to diaryl- and alkynyliodonium salts.

alkynes - aryl halides - hypervalent elements - iodine