67294-75-1Relevant academic research and scientific papers
Rh(III)-catalyzed C-H bond activation along with "rollover" for the synthesis of 4-azafluorenes
Shibata, Takanori,Takayasu, Satoshi,Yuzawa, Shun,Otani, Takashi
supporting information, p. 5106 - 5109,4 (2020/09/15)
An intramolecular reaction of 3-alkynyl and 3-alkenyl-2-arylpyridines selectively gave 4-azafluorene compounds in the presence of a catalytic amount of [Cp*RhCl2]2 and Cu(OAc)2. Pyridine-directed C-H bond activation along
Synthesis of 9-alkylidene-9H-fluorenes by a novel, palladium-catalyzed cascade reaction of aryl halides and 1-aryl-1-alkynes
Larock,Tian
, p. 7372 - 7379 (2007/10/03)
In the presence of a palladium catalyst and NaOAc, aryl iodides react with 1-aryl-1-alkynes to afford 9-alkylidene-9H-fluorenes in good yields. The products from this reaction are highly dependent on the base employed. This process appears to involve (1)
Synthesis of 9-alkylidene-9H-fluorenes by a novel palladium-catalyzed rearrangement
Tian, Qingping,Larock, Richard C.
, p. 3329 - 3332 (2007/10/03)
(matrix presented) In the presence of a palladium catalyst and NaOAc, aryl iodides react with 1-aryl-1-alkynes to afford 9-alkylidene-9H-fluorenes in good yields. This process appears to involve (1) oxidative addition of the aryl iodide to Pd(0), (2) alkyne insertion, (3) rearrangement of the resulting vinylic palladium intermediate to an arylpalladium species, and (4) aryl-aryl coupling with simultaneous regeneration of the Pd(0) catalyst.
SYNTHESIS, CONFIGURATION, AND TRANSFORMATIONS OF 9-(N-ARYLMETHYLENEAMINOMETHYLENE)-4-AZAFLUORENES
Varlamov, A. V.,Levov, A. N.,Aliev, A. E.,Vener, M. V.,Ustenko, A. A.,Prostakov, N. S.
, p. 314 - 319 (2007/10/02)
The condensation of 9-aminomethylene(α-aminobenzylidene)-4-azafluorenes with aromatic aldehydes leads to 9-azafluorenes, in which the azadiene fragment of the (Z) and (E) isomers has s-trans configuration.During thermolysis the synthesized azadienes are transformed into 9-arylmethylene-4-azafluorenes. 9-.
