549548-77-8Relevant academic research and scientific papers
Study of the mechanism of base induced dehydrobromination of trans-β-bromostyrene
Ma?kosza, Mieczys?aw,Chesnokov, Alexey A.
, p. 1995 - 2000 (2007/10/03)
Observation that rates of dehydrobromination of trans-β-bromostyrene (1) and the Hofmann degradation of tetrabutyl ammonium cation depend on strength of base in different ways and that treatment of 1 with base results in fast abstraction of the β-proton imply the possibility that the dehydrobromination of 1 could proceed via α-elimination and Ph migration. In order to clarify this question, β-13C-labeled 1 was obtained and subjected to PTC dehydrobromination which proceeds without migration of Ph. The obtained results are consistent with an irreversible E1cB mechanism.
Dissociative ionization of aryl-substituted vinyl bromides in the gas phase: Experimental and computational evidence for the formation of stable α-arylvinyl cations both by direct means and spontaneous exothermic isomerization of unstable isomeric ions
Apeloig, Yitzhak,Franke, Wilfried,Rappoport, Zvi,Schwarz, Helmut,Stahl, Daniel
, p. 2770 - 2780 (2007/10/02)
The kinetic energy release T which accompanies the Br· loss from ionized (E)- and (Z)-β-bromostyrenes (5 and 6) in the gas phase is higher by 0.7 ± 0.03 kcal mol-1 than that from the molecular ion of α-bromostyrene (4). Together with both colli
