N-heterocyclic carbene based ruthenium complexes for selective ?-C(sp3)-H functionalization of N-fused saturated cyclic amines
Küçük Resim Yok
Tarih
2019
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Pergamon-Elsevier Science Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Herein, a series of new ruthenium(II) complexes with the general molecular formula [RuCl2(arene)(NHC)], (arene = eta(6)-p-cymene, NHC = N-heterocyclic carbene) were synthesized from in situ prepared silver(I)-NHCs by the transmetallation method. These complexes were fully characterized by analytical and spectral methods. Ruthenium(11) complexes were tested as promising catalyst for selective B-C(sp(3))-H functionalization of N-methylpiperidine with various aldehydes through hydrogen transfers in presence of external acidic additive. These eco-friendly cross-dehydrogenative couplings enable the production of C(3)-alkylated N-methylpiperidine derivatives without enamines with only carbon dioxide and water as benign by-product. (C) 2019 Elsevier Ltd. All rights reserved.
Açıklama
Anahtar Kelimeler
N-Heterocyclic carbene, Ruthenium, Cyclic amine, Catalysis, beta-alkylation
Kaynak
Tetrahedron
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
75
Sayı
15
