Solvolysis reactions of bis(difluoramino)ethylenes: a route to nitrenium ions
作者:William H. Graham
DOI:10.1016/s0022-1139(00)80216-x
日期:1990.7
The reaction of tetrafluorohydrazine with acetylenes in inert solvent gives α,α-(fluorodifluoramino)fluorimines via unstable bis(difluoramino)- ethylenes. Under solvolytic conditions the rearrangement involves Sn1 cleavage of the NF bond and the formation of a mesomeric nitrogen-carbon cation. The resulting ion pair can collapse to the α,α-(fluorodifluoramino)- fluorimine, which is stable under the