Synthesis of imine group containing chiral bis(phosphinite) ligands and ru(ii) complexes: Investigation of their catalytic activity in the asymmetric transfer hydrogenation of ketones
Başlık çevirisi mevcut değil.
- Tez No: 413310
- Danışmanlar: DOÇ. DR. FEYYAZ DURAP
- Tez Türü: Yüksek Lisans
- Konular: Kimya, Chemistry
- Anahtar Kelimeler: Belirtilmemiş.
- Yıl: 2015
- Dil: İngilizce
- Üniversite: Dicle Üniversitesi
- Enstitü: Fen Bilimleri Enstitüsü
- Ana Bilim Dalı: Kimya Ana Bilim Dalı
- Bilim Dalı: Belirtilmemiş.
- Sayfa Sayısı: 63
Özet
Özet yok.
Özet (Çeviri)
Transfer hydrogenation processes are attracting considerable attention in synthetic chemistry due to their operational simplicity. Asymmetric transfer hydrogenation of simple ketones by using chiral catalysts is one of the most significant ways to obtain chiral alcohols in organic synthesis. The most popular ligands employed in asymmetric catalysis are phosphorus containing ones. The common feature of the ligands used for this purpose is to have a C2 symmetry axis. Although there have been many reports on these type ligands and their transition metal complexes, to the best of our knowledge, there are few studies on imine containing bis(phosphinites) and their catalytic activity in asymmetric transfer hydrogenation. In the present study, firstly, 1-({[(1R,2R)-2-{[(2-hydroxynaphthalen-1-yl)methylidene] amino}cyclohexyl]imino}methyl)naphthalen-2-ol was prepared as precursors for phosphinites according to a literature procedure. Then, new chiral C2-symmetric bis(phosphinite) ligands were synthesized the corresponding 1-({[(1R,2R)-2-{[(2-hydroxynaphthalen-1-yl)methylidene]amino}cyclohexyl] imino} methyl)naphthalen-2-ol and two equivalents of (Cy)2PCl, PPh2Cl or P(i-Pr)2Cl in high yields. Ru(II) metal complexes of the chiral phosphinite ligands were synthesized by treating of [Ru(η6-p-cymene)(μ-Cl)Cl]2 with the phosphinites in 1:1 molar ratio in CH2Cl2 and their catalytic activity in asymmetric transfer hydrogenation were investigated in the reaction of acetophenone derivatives with isopropyl alcohol.
Benzer Tezler
- Bor türevi kimyasallarla çeşitli bileşiklerin sentezi ve uygulamaları
Synthesis and various applications of boron derivative compounds
SALİH PAŞA
- Regioselective ring opening reactions of aziridine-2-phosphonates and aziridine based chiral ligands for catalytic, asymmetric azomethine ylide cycloadditions and aza-henry reaction
Aziridin-2-fosfonatların alanseçici halka açılma tepkimeleri ve aziridin bazlı kiral ligandların katalitik asimetrik azometin ylidlerin halkasal katılmasında ve aza-henry tepkimelerinde kullanılması
NURZHAN BEKSULTANOVA
- N,n-dimetil aminofenil ve taç eter grupları ile modifiye edilmiş asimetrik çinko ftalosiyanin tabanlı ve iki kanallı Be2+ sensörü
N,n-dimethyl aminophenyl and crown ether modified asymmetric zinc phthalocyanine based and double channel Be2+ sensor
MUSTAFA SEZEN
- Benzotiyazol grubu içeren imin ve amin türevi bileşiklerin sentezi, karakterizasyonu ve biyolojik aktivite özellikleri
Synthesis, characterization and biological activity properties of imine and amine derivative compounds containing benzothiazole group
MUHAMMED TUTAR
- Farklı fonksiyonel grup içeren schiff bazı ligantları ve geçiş metal komplekslerinin sentezi, karakterizasyonu ve antioksidan kapasitesi, süperoksit dismutaz enzim aktivitesi ve fotolüminesans özelliklerinin incelenmesi
Synthesis of schiff base ligands and transition metal complexes containing the different functional groups; their structural characterization, antioxidant capacity, superoxide dismutase enzyme activity and investigation of photolumi̇nescence properti̇es
İLYAS GÖNÜL
