Active ruthenium(II)-NHC complexes for alkylation of amines with alcohols using solvent-free conditions
Küçük Resim Yok
Tarih
2020
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Pergamon-Elsevier Science Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
A series of new ruthenium(II) complexes bearing N-heterocyclic carbene ligands with benzylic groups were prepared by transmetallation reactions between silver(I) N-heterocyclic carbene complexes and [RuCl2(P-cymene)](2). All of the obtained complexes were characterized by FT-IR, H-1 NMR and C-13 NMR spectroscopy, and the molecular structure of compound 3c was also determined by X-ray crystallography. These ruthenium complexes were tested for the alkylation of aromatic amines with a wide range of primary alcohols under solvent-free conditions using the hydrogen borrowing strategy. All of the compounds tested here showed excellent catalytic activity for these reactions and N-monoalkylated products were obtained selectively using 2.5 mol% of the ruthenium complexes. (C) 2019 Elsevier Ltd. All rights reserved.
Açıklama
Anahtar Kelimeler
Ru-N-heterocyclic carbene complex, X-ray crystallography, Borrowing hydrogenation reaction, Alkylation of amine
Kaynak
Polyhedron
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
175
