Chen, Qing-An; Chen, Zhiwei; Dong, Vy M. published an article about the compound: 5-Fluoroindoline( cas:2343-22-8,SMILESS:FC1=CC2=C(NCC2)C=C1 ).HPLC of Formula: 2343-22-8. 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.
The hydroamination of internal alkynes via tandem rhodium catalysis gives branched N-allylic indolines with high regio- and enantioselectivity. An acid switch provides access to the linear isomer in preference to the branched isomer by an isomerization mechanism. Mechanistic studies suggest formation of an allene intermediate, which undergoes hydroamination to generate allylic amines instead of the enamine or imine products typically observed in alkyne hydroaminations.
In addition to the literature in the link below, there is a lot of literature about this compound(5-Fluoroindoline)HPLC of Formula: 2343-22-8, illustrating the importance and wide applicability of this compound(2343-22-8).
Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics