17529-01-0Relevant articles and documents
A Fluorenyl Activating Group Enables Addition of Simple Grignard Reagents to C=N Electrophiles
Mukashyaka, Patience,Hamilton, Gregory L.
, p. 1857 - 1860 (2018)
Nucleophilic addition of organometallic reagents to ketimines and hydrazones can be a challenging transformation. Here we report the use of fluorenone-derived mixed azines which promote facile addition of Grignard reagents. The fluorenylidene activating g
Synthesis and Properties of 9-(Tropylidenehydrazono)fluorene and Related Compounds
Minabe, Masahiro,Nozawa, Toshiya,Kurose, Tomoko,Kimura, Takao,Tsubota, Motohiro
, p. 693 - 697 (2007/10/03)
9-(Tropylidenehydrazono)fluorene (1) was obtained by a reaction between 9-fluorenone hydrazone and tropylium tetrafluoroborate. ccompanied by 9-fluorenone azine, 9-(benzylidenehydrazono)fluorene, and 9,9-ditropylfluorene. The amination of 1 occurred at the 2-position of the tropylidene moiety. The addition of tosyl isocyanate to 1 gave the [8 +2] cycloadduct at the 2,4,6-cydoheptatrien-1-imine structure.