HPLC of Formula: 7073-94-1In 2020 ,《C-H Arylation of Thiophenes with Aryl Bromides by a Parts-per-Million Loading of a Palladium NNC-Pincer Complex》 was published in Synlett. The article was written by Purta, Anggi Eka; Ichii, Shun; Tazawa, Aya; Uozumi, Yasuhiro. The article contains the following contents:
A palladium NNC-pincer complex efficiently catalyzed the direct arylation of thiophene derivatives with extremely low palladium loadings of the order of ppm. Thus, the reaction of various thiophenes with aryl bromides in the presence of 25-100 mol ppm of chlorido[(2-phenyl-κ- C2)-9-phenyl-1,10-phenanthroline-κ2-N,N’]palladium(II) NNC-pincer complex, K 2CO3 and pivalic acid in N,N-dimethylacetamide afforded the corresponding 2- or 5-arylated thiophenes I [R1 = H, 5-Cl, 5-Me; Ar = Ph, 4-MeC6H4, 1-naphthyl, etc.] and II [R = 2-Cl, 2-Me, 2-Ph-3-Me, etc.; Ar = 4-MeC6H4] in good to excellent yields. A combination of the present C-H arylation and Hiyama coupling with the same NNC-pincer complex provided an efficient synthesis of unsym. 2,5-thiophenes II [R = 2-(4-MeOC6H4), 2-(4-F3CC6H4); Ar = 4-MeC6H4] with catalyst loadings at mol ppm levels. In the experiment, the researchers used 1-Bromo-2-isopropylbenzene(cas: 7073-94-1HPLC of Formula: 7073-94-1)
1-Bromo-2-isopropylbenzene(cas: 7073-94-1) belongs to organobromine compounds.Depending on the type of carbon to which the bromine is bonded, organic bromide could be alkyl, alkenyl, alkynyl, or aryl. Alkyl bromides are mainly used as alkylating agents and also find application as a solvent to extract oil from seeds and wool. HPLC of Formula: 7073-94-1
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary