In 2019,Chemical Communications (Cambridge, United Kingdom) included an article by Mondal, Mukulesh; Panda, Manashi; Davis, Nicholas W.; McKee, Vickie; Kerrigan, Nessan J.. Application In Synthesis of Indium(III) bromide. The article was titled 《Asymmetric synthesis of cyclopentanones through dual Lewis acid-catalysed [3+2]-cycloaddition of donor-acceptor cyclopropanes with ketenes》. The information in the text is summarized as follows:
When InBr3-EtAlCl2 (15-30 mol%) was used as a dual Lewis acid system to promote the formal [3+2]-cycloaddition of enantioenriched donor-acceptor cyclopropanes I (R1 = C2H3, Ph, C2H2C6H4; R2 = 2-methoxy-2-oxoethyl, 2-ethoxy-2-oxoethyl, 2-(benzyloxy)-2-oxoethyl) with ketenes (O)CC(R3)(R4) (R3 = 4-methylphenyl, 4-(trifluoromethyl)phenyl, cyclohexyl, etc.; R4 = Et, Ph, Me, n-butyl), cyclopentanones II were formed in good to excellent yields (84-99%, 18 examples), and with excellent transfer of chirality (15 examples, 90% ee to >99% ee). In addition to this study using Indium(III) bromide, there are many other studies that have used Indium(III) bromide(cas: 13465-09-3Application In Synthesis of Indium(III) bromide) was used in this study.
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.Application In Synthesis of Indium(III) bromide
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary