1,5-Phosphonium betaines from N-triflylpropiolamides, triphenylphosphane, and active methylene compounds

Vito A Fiore1, Chiara Freisler1, Gerhard Maas1

  • 1Institute of Organic Chemistry I, Ulm University, Albert-Einstein-Allee 11, D-89081 Ulm, Germany.

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