Improved method for the obtaining DTTA-appended 2,2’-bipyridine ligands for lanthanide cations

Autor: Dmitry S. Kopchuk, Alexey P. Krinochkin, Мaria I. Valieva, Еkaterina S. Starnovskaya, Yaroslav K. Shtaitz, Svetlana S. Rybakova, Evgeny D. Ladin, Ekaterina A. Kudryashova, Elvira R. Sharafieva, Оleg N. Chupakhin
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Chimica Techno Acta, Vol 9, Iss 2 (2022)
Druh dokumentu: article
ISSN: 2411-1414
DOI: 10.15826/chimtech.2022.9.2.10
Popis: The composition of the reaction mixture after DTTA tert-butyl ester alkylation with 6'-halomethyl-5-phenyl-2,2'-bipyridines was studied. In addition to the target product, DTTA-appended 2,2’-bipyridine, the corresponding 6'-hydroxymethyl-substituted 2,2’-bipyridine and (5'-phenyl-[2,2'-bipyridin]-6-yl)methyl formate were isolated as by-products in some cases. Finally, an improved procedure for the DTTA tert-butyl ester alkylation with 6'-halomethyl-5-phenyl-2,2'-bipyridines by using Finkelstein reaction was developed.
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