Uyanik, Muhammet; Tanaka, Hiroki; Ishihara, Kazuaki published the article 《I+/TBHP Catalysis For Tandem Oxidative Cyclization To Indolo[2,3-b]quinolines》. Keywords: indoloquinoline preparation chemoselective; indole aniline sulfonamide tandem oxidative cyclization tetrabutylammonium iodide catalyst.They researched the compound: H-Trp-OMe.HCl( cas:7524-52-9 ).HPLC of Formula: 7524-52-9. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:7524-52-9) here.
A chemoselective tandem oxidative cyclization/aromatization of indole derivatives tethered to aniline sulfonamides using catalytic amount of tetrabutylammonium in the presence of tert-Bu hydroperoxide (TBHP) as an oxidant under nearly neutral conditions at room temperature is reported. The corresponding indolo[2,3-b]quinolines were obtained as sulfonate salts, which could be easily isolated in anal. pure form via only a simple filtration of the crude reaction mixture The natural product quinindoline could be easily obtained after basic work-up of the sulfonate salt. Control experiments revealed that both ionic and radical active species could be generated in situ under mild conditions for the corresponding oxidative transformations to proceed in a chemoselective manner.
In addition to the literature in the link below, there is a lot of literature about this compound(H-Trp-OMe.HCl)HPLC of Formula: 7524-52-9, illustrating the importance and wide applicability of this compound(7524-52-9).
Reference:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem