Applications of transition metal complexes containing aminophosphine ligand to transfer hydrogenation of ketones
Yükleniyor...
Tarih
2011
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Wiley
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Hydrogen transfer reduction processes are attracting increasing interest from synthetic chemists in view of their operational simplicity. Reaction of [Ph2PNHCH2-C4H3S] with [Ru(eta(6)-benzene)(mu-Cl)Cl](2), [Rh(mu-Cl)(cod)](2) and [Ir(eta(5)-C5Me5)(mu-Cl)Cl](2) gave a range of new monodendate complexes [Ru(Ph2PNHCH2-C4H3S)(eta(6)-benzene)Cl-2], 1, [Rh(Ph2PNHCH2-C4H3S)(cod)Cl], 2, and [Ir(Ph2PNHCH2-C4H3S)(eta(5)-C5Me5)Cl-2], 3, respectively. All new complexes were fully characterized by analytical and spectroscopic methods. H-1-P-31 NMR, H-1-C-13 HETCOR or H-1-H-1 COSY correlation experiments were used to confirm the spectral assignments. 1-3 are suitable catalyst precursors for the transfer hydrogenation of acetophenone derivatives. Notably [Ru(Ph2PNHCH2-C4H3S)(eta(6)-benzene) Cl-2], 1, acts as an excellent catalyst, giving the corresponding alcohols in 98-99% yields in 30 min at 82 degrees C (TOF <= 200 h(-1)) for the transfer hydrogenation reaction in comparison to analogous rhodium or iridium complexes. This transfer hydrogenation is characterized by low reversibility under these conditions. Copyright (C) 2011 John Wiley & Sons, Ltd.
Açıklama
Anahtar Kelimeler
Aminophosphine, Transition metals, Transfer hydrogenation, Catalysis
Kaynak
Applied Organometallic Chemistry
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
25
Sayı
4
Künye
Aydemir, M., Baysal, A. ve Turgut, Y. (2011). Applications of transition metal complexes containing aminophosphine ligand to transfer hydrogenation of ketones. Applied Organometallic Chemistry, 25(4), 270-275.
