Morimoto, Tsumoru published the artcileRh(I)-Catalyzed CO Gas-Free Carbonylative Cyclization Reactions of Alkynes with 2-Bromophenylboronic Acids Using Formaldehyde, Synthetic Route of 89694-44-0, the publication is Organic Letters (2009), 11(8), 1777-1780, database is CAplus and MEDLINE.
The rhodium(I)-catalyzed reaction of alkynes with 2-bromophenylboronic acids in the presence of paraformaldehyde resulted in a CO gas-free carbonylative cyclization, yielding indenone derivatives [RhCl(BINAP)]2 and [RhCl(cod)]2 were responsible for the decarbonylation of formaldehyde and the subsequent carbonylation of alkynes with 2-haloboronic acids, resp., leading to efficient whole carbonylation. Sterically bulky and electron-withdrawing groups on unsym. substituted alkynes favored the α-position of indenones.
Organic Letters published new progress about 89694-44-0. 89694-44-0 belongs to bromides-buliding-blocks, auxiliary class Bromide,Boronic acid and ester,Benzene,Ether,Boronic Acids,Boronic acid and ester, name is 2-Bromo-5-methoxybenzene boronic acid, and the molecular formula is C7H8BBrO3, Synthetic Route of 89694-44-0.
Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary