109270-33-9Relevant academic research and scientific papers
REACTION OF HEXAFLUOROBUTADIENE WITH PHENYLACETYLENE. I. INITIAL PRODUCTS
Kaz'mina, N. B.,Kurbakova, A. P.,Leites, L. A.,Kvasov, B. A.,Mysov, E. I.
, p. 1500 - 1504 (2007/10/02)
The cycloaddition of phenylacetylene to hexafluorobutadiene was studied.The initial reaction products were the - and -cycloadducts, which were capable of further transformations.The structures of the initial products were proved by mass, IR, Raman, UV, and NMR spectroscopy.It was established that the -cycloadduct exists in the form of two racemic modifications, differing in the relative arrangement of the substituents in space.
REACTION OF HEXAFLUOROBUTADIENE WITH PHENYLACETYLENE. III. TRANSFORMATIONS OF THE -CYCLOADDUCT
Kaz'mina, N. B.,Kvasov, B. A.,Antipin, M. Yu.,Struchkov, Yu. P.,Mysov, E. I.,et al.
, p. 1508 - 1520 (2007/10/02)
The -cycloadduct of hexafluorobutadiene and phenylacetylene isomerizes under the conditions of the thermal reaction, dimerizes, and reacts with phenylacetylene.The dimerization and the reaction with phenylacetylene are preceded by fluorotropic rearrangement of the -cycloadduct to 1-phenyl-4-tetrafluoroethylidene-3,3-difluorocyclobutene.The reaction of the latter with phenylacetylene is accompanied by aromatization of the intermediately formed - and -cycloadducts, while the dimerization is reversible and is realized by a mechanism of the "head-to-head" type.
