73456-74-3Relevant academic research and scientific papers
STABLE CARBOCATIONS. PART 21. INTRA-IONIC PROTON TRANSFER IN ELECTROPHILIC CYCLISATION OF 3-FERROCENYL-1-PHENYLPROPEN-1-YL CATION
Crawford, William,Watts, William E.
, p. 443 - 447 (1980)
The spontaneous conversion of the title cation into the 1-phenyl(1,2)ferrocenophan-1-yl cation proceeds by intra-ionic 1,3-shift of a cyclopentadienyl α-ring proton to C(2) of the homoannular bridge; the latter cation undergoes deprotonation by stereospecific loss of the exo-proton adjacent to C+.
