Yamashita, Mitsuaki published the artcileOne-pot synthesis of polyhydropyrido[1,2-a]indoles and tetracyclic quinazolinones from 2-arylindoles using copper-mediated oxidative tandem reactions, Recommanded Product: 5-Chloro-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indole, the publication is Tetrahedron (2016), 72(27-28), 4123-4131, database is CAplus.
We developed facile one-pot methods for the transformation of 2-arylindoles to polyhydropyrido[1,2-a]indoles and tetracyclic quinazolinones. The copper-catalyzed oxidation of 2-arylindoles to C-acylimines followed by aza-Diels-Alder reactions or oxidative ring-expansion reactions afforded significant polycyclic heterocycles, e. g., I.
Tetrahedron published new progress about 1256358-91-4. 1256358-91-4 belongs to indole-building-block, auxiliary class Indole,Chloride,Boronic acid and ester,Boronate Esters,Boronic Acids,Boronic acid and ester, name is 5-Chloro-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indole, and the molecular formula is C5H8N2O, Recommanded Product: 5-Chloro-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indole.
Referemce:
https://www.nature.com/articles/s41429-020-0333-2,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles