Various approaches are described for dehydrofluorination of heptafluorobut-2-ene (2) to give hexafluorobut-2-yne (1). Molecular sieve is particularly successful. Reaction of (2) with 1,8-diazabicyclo[5.4.0] undec-7-ene (DBU) surprisingly gave the novel heterocycle (8) via initial nucleophilic attack. Reactions of(2) with other bases are also described.
Chambers Richard D., Roche Alex J., Batsanov Andrei S., Howard Judith A. +, J. Chem. Soc. Chem. Commun, (1994) N 18, S 2055-2056
作者:Chambers Richard D., Roche Alex J., Batsanov Andrei S., Howard Judith A. +