Short-time suzuki reactions of arly halides catalyzed by palladium-loaded NaY zeolite under aerobic conditions
tarafından
 
Durgun, Gülay.

Başlık
Short-time suzuki reactions of arly halides catalyzed by palladium-loaded NaY zeolite under aerobic conditions

Yazar
Durgun, Gülay.

Yazar Ek Girişi
Durgun, Gülay.

Yayın Bilgileri
[s.l.]: [s.n.], 2006

Fiziksel Tanımlama
xii, 131 leaves.: ill.+ 1 computer laser optical disc.

Genel Not
Keywords:Suzuki reactions, palladium, NaYzeolite, heterogeneous catalyst, C-C coupling.

Özet
3 The palladium-catalyzed Suzuki cross-coupling reaction is a powerful methods used in the synthesis of biaryl compounds.In this study, the Suzuki reactions of aryl bromides and chlorides with arylboronic acid were carried out over a Pd(NH3)42+-loaded NaY type zeolite. On the basis of our results, the Pd(NH3)42+-loaded NaY zeolite was found to be highly active for the Suzuki reactions of wide range of aryl bromides and electron poor aryl chlorides at low Pd concentrations (0.1-0.001mol %Pd), in air and at short times (5-45 minutes). The presence of relatively large amount of zeolite (1-4 g) was crucial for the success of the reactions with aryl chlorides. It was determined that there was a synergistic effect of the water- zeolite pair on the reaction rate.It was found that reactions were catalyzed dissolved palladium species. However,the palladium was largely recovered and only traces of palladium remained within the solution at the end of reaction (<0.8 ppm).

Konu Başlığı
Palladium catalysts
 
Heterogeneous catalysis

Yazar Ek Girişi
Artok, Levent

Tüzel Kişi Ek Girişi
İzmir Institute of Technology. Chemistry.

Tek Biçim Eser Adı
Thesis (Master)--İzmir Institute of Technology: Chemistry.
 
İzmir Institute of Technology: Chemistry--Thesis (Master).

Elektronik Erişim
Access to Electronic Version.


LibraryMateryal TürüDemirbaş NumarasıYer NumarasıDurumu/İade Tarihi
IYTE LibraryTezT000528QD505.D959 2006Tez Koleksiyonu