Recommanded Product: 3,5-DibromoanilineIn 2020 ,《Tetracoordinate borates as catalysts for reductive formylation of amines with carbon dioxide》 was published in Green Chemistry. The article was written by Jiang, Xiaolin; Huang, Zijun; Makha, Mohamed; Du, Chen-Xia; Zhao, Dongmei; Wang, Fang; Li, Yuehui. The article contains the following contents:
We report sodium trihydroxyaryl borates as the first robust tetracoordinate organoboron catalysts for reductive functionalization of CO2. These catalysts, easily synthesized from condensing boronic acids with metal hydroxides, activate main group element-hydrogen (E-H) bonds efficiently. In contrast to BX3 type boranes, boronic acids and metal-BAr4 salts, under transition metal-free conditions, sodium trihydroxyaryl borates exhibit high reactivity of reductive N-formylation toward a variety of amines (106 examples), including those with functional groups such as ester, olefin, hydroxyl, cyano, nitro, halogen, MeS-, ether groups, etc. The over-performance to catalyze formylation of challenging pyridyl amines affords a promising alternative method to the use of traditional formylation reagents. Mechanistic investigation supports electrostatic interactions as the key for Si/B-H activation, enabling alkali metal borates as versatile catalysts for hydroborylation, hydrosilylation, and reductive formylation/methylation of CO2. In the experiment, the researchers used 3,5-Dibromoaniline(cas: 626-40-4Recommanded Product: 3,5-Dibromoaniline)
3,5-Dibromoaniline(cas: 626-40-4) belongs to anime. Amines characteristically form salts with acids; a hydrogen ion, H+, adds to the nitrogen. With the strong mineral acids (e.g., H2SO4, HNO3, and HCl), the reaction is vigorous. Salt formation is instantly reversed by strong bases such as NaOH. Neutral electrophiles (compounds attracted to regions of negative charge) also react with amines; alkyl halides (R′X) and analogous alkylating agents are important examples of electrophilic reagents.Recommanded Product: 3,5-Dibromoaniline
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary