Oxoammonium salts are catalysing efficient and selective halogenation of olefins, alkynes and aromatics was written by Wang, Weijin;Li, Xinyao;Yang, Xiaoxue;Ai, Lingsheng;Gong, Zhiwen;Jiao, Ning;Song, Song. And the article was included in Nature Communications in 2021.Recommanded Product: 103-16-2 The following contents are mentioned in the article:
Herein, TEMPO (2,2,6,6-tetramethylpiperidine nitroxide) and its derivatives are disclosed as active catalysts for electrophilic halogenation of olefins e.., prop-1-en-1-ylbenzene, alkynes R1CCR2 (R1 = octyl, Ph; R2 = H, Me, n-Bu, Ph), and aromatics R3H (R3 = 3-(carboxymethyl)-4-methoxybenzen-1-yl, 2-[ethoxy(oxo)methane]-1H-indol-3-yl, 5-phenylthiophen-2-yl, etc.). These catalysts are stable, readily available, and reactive enough to activate haleniums including Br+, I+ and even Cl+ reagents. This catalytic system is applicable to various halogenations including haloarylation of olefins or dibromination of alkynes, which were rarely realized in previous Lewis base catalysis or Lewis acid catalysis. The high catalytic ability is attributed to a synergistic activation model of electrophilic halogenating reagents, where the carbonyl group and the halogen atom are both activated by present TEMPO catalysis. This study involved multiple reactions and reactants, such as 4-Benzyloxyphenol (cas: 103-16-2Recommanded Product: 103-16-2).
4-Benzyloxyphenol (cas: 103-16-2) belongs to ethers. Esters are also usually derived from carboxylic acids. It may also be obtained by reaction of acid anhydride or acid halides with alcohols or by the reaction of salts of carboxylic acids with alkyl halides. Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are common in organic chemistry and biological materials.Recommanded Product: 103-16-2
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem