Highly efficient direct visible-light-mediated oxidative esterification of aldehydes was written by Lindroth, Rickard;Bryce-Rogers, Hogan P.;Merke, Thomas P. M.;Wallentin, Carl-Johan. And the article was included in Photochemical & Photobiological Sciences in 2022.Application In Synthesis of 1-Bromopyrrolidine-2,5-dione This article mentions the following:
A very efficient one-pot procedure for the direct oxidation of aldehydes to esters RC(O)OR1 [R = Ph, cyclohexyl, 4-MeOC6H4, etc.; R1 = Me, Et, t-Bu, etc.] mediated by visible-light was presented. Utilizing a combination of indium triflate and N-bromosuccinimide, NBS, with either ortho-esters or alcs. provided rapid access to a variety of esters RC(O)OR1. Certain substrates convert fully within a few seconds, other more challenging tert-Bu esters RC(O)OR1 [R = 4-PhC6H4; R1 = t-Bu] were formed in good yield after no more than 4 h. In the experiment, the researchers used many compounds, for example, 1-Bromopyrrolidine-2,5-dione (cas: 128-08-5Application In Synthesis of 1-Bromopyrrolidine-2,5-dione).
1-Bromopyrrolidine-2,5-dione (cas: 128-08-5) belongs to organobromine compounds. Bromine is more electronegative than carbon (2.9 vs 2.5). Consequently, the carbon in a carbon–bromine bond is electrophilic, i.e. alkyl bromides are alkylating agents. One prominent application of synthetic organobromine compounds is the use of polybrominated diphenyl ethers as fire-retardants, and in fact fire-retardant manufacture is currently the major industrial use of the element bromine.Application In Synthesis of 1-Bromopyrrolidine-2,5-dione
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary