Kumaran, Elumalai; Leong, Weng Kee published an article about the compound: 5-Fluoroindoline( cas:2343-22-8,SMILESS:FC1=CC2=C(NCC2)C=C1 ).Reference of 5-Fluoroindoline. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:2343-22-8) through the article.
Gold nanoclusters were good catalyst precursors for the catalytic dehydrogenation of indolines to obtain indoles I [R1 = H, 5-Me, 5-F, 5-Br, 5-NO2, 6-NO2; R2 = H, Me, CO2Me, CO2Et]. Furthermore, this method was used to synthesize quinolines and quinazolines II [R3 = H, 4-ClC6H4, 2-furyl, etc.; R4 = H, 6-Br, 6,8-di-Br; X = CH, N] from tetrahydroquinolines and tetrahydroquinazolines. The catalytically active species was presumably Au(0) nanoparticles.
The article 《Gold(0) catalyzed dehydrogenation of N-heterocycles》 also mentions many details about this compound(2343-22-8)Reference of 5-Fluoroindoline, you can pay attention to it, because details determine success or failure
Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics