In 2018,Nishimoto, Yoshihiro; Yi, Junyi; Takata, Tatsuaki; Baba, Akio; Yasuda, Makoto published 《Regio- and stereoselective allylindation of alkynes using InBr3 and allylic silanes: synthesis, characterization, and application of 1,4-dienylindiums toward skipped dienes》.Molecules published the findings.Electric Literature of Br3In The information in the text is summarized as follows:
Regioselective anti-allylindation of alkynes was achieved using InBr3 and allylic silanes. Various types of alkynes and allylic silanes were applicable to the present allylindation. This sequential process used the generated 1,4-dienylindiums to establish novel synthetic methods for skipped dienes. The 1,4-dienylindiums were characterized by spectral anal. and treated with I2 to stereoselectively give 1-iodo-1,4-dienes. The Pd-catalyzed cross coupling of 1,4-dienylindium with iodobenzene successfully proceeded in a one-pot manner to afford the corresponding 1-aryl-1,4-diene. In the experiment, the researchers used Indium(III) bromide(cas: 13465-09-3Electric Literature of Br3In)
Indium(III) bromide(cas: 13465-09-3) is used in organic synthesis as a water tolerant Lewis acid. It efficiently catalyzes the three-component coupling of β-keto esters, aldehydes and urea (or thiourea) to afford the corresponding dihydropyrimidinones.Electric Literature of Br3In
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary