Yamashiro, Toshiki; Abe, Takumi; Tanioka, Masaru; Kamino, Shinichiro; Sawada, Daisuke published their research in Chemical Communications (Cambridge, United Kingdom) in 2021. The article was titled 《Cis-3-Azido-2-methoxyindolines as safe and stable precursors to overcome the instability of fleeting 3-azidoindoles》.Reference of Indium(III) bromide The article contains the following contents:
A general and concise approach for tackling this problem by using 3-azidoindole surrogated. The surrogated was bench-stable, presumably due to the observed intramol. O-Nβ bonding. The resultant fleeting intermediates underwent capturing in-situ to afford 3-substitued indoles through formal ipso-substitution of the azide group by nucleophiles. In these investigations, the fleeting 3-azidoindoles showed a C3-electrophilic character for the first time. In the experiment, the researchers used Indium(III) bromide(cas: 13465-09-3Reference of Indium(III) bromide)
Indium(III) bromide(cas: 13465-09-3) is used as a catalyst to produce dithioacetals when unactivated alkynes react with thiols and fields such as optics and microelectronics that utilize semiconductor technology have wide uses for indium in high-performing solar cells.Reference of Indium(III) bromide
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary