(NHC)-Pd(II) complexes with hydrophilic nitrogen ligands: catalytic properties in neat water

Hayati TÜRKMEN; Lütfiye GÖK; İbrahim KANİ; Bekir ÇETİNKAYA

Makale detayları

(NHC)-Pd(II) complexes with hydrophilic nitrogen ligands: catalytic properties in neat water

Yazarlar:

Hayati TÜRKMEN | Lütfiye GÖK | İbrahim KANİ | Bekir ÇETİNKAYA

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2013 Vol.37 Issue 4, pp.633-642

Belge Tipi:

Makale

Yayın Tarihi:

3/2013

Belge Dili:

Türkçe

Document ID (Org No.):

2000727391

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527

Özet:

 

The cleavage reactions of the dimers [(NHC)PdX2]2 with hydrophilic N-donors,   L, afforded the mixed-ligand complexes of the type trans-[(NHC)LPdX2] (X = Cl or Br; NHC =   1,3-dialkylbenzimidazol-2-ylidene (BIm) or bis(imino)acenaphthene-annulated   bis(2,6-diisopropylphenyl)imidazol-2-ylidene (BIAN-IPr); L =   diethanolamine (DEA), morpholine (MOR), and 3-pyridinecarboxylic acid   (3-PCA)). The new complexes (1--3) were characterized by   elemental analysis and spectroscopic methods and the molecular structure of   1a was determined by X-ray diffraction studies. These complexes   were applied in the Suzuki--Miyaura cross-coupling reaction of phenylboronic   acid with aryl halides in neat water. The activities of catalysts were   monitored by gas chromatography--flame ionization detector and nuclear   magnetic resonance. Whereas the complexes with DEA or 3-PCA ligands did not   show significant difference in the activity, the BIAN-IPr complexes   1b and 3b bearing DEA and 3-PCA, displayed the highest   catalytic activity at 100 °C.

 

The cleavage reactions of the dimers [(NHC)PdX2]2 with hydrophilic N-donors,   L, afforded the mixed-ligand complexes of the type trans-[(NHC)LPdX2] (X = Cl or Br; NHC =   1,3-dialkylbenzimidazol-2-ylidene (BIm) or bis(imino)acenaphthene-annulated   bis(2,6-diisopropylphenyl)imidazol-2-ylidene (BIAN-IPr); L =   diethanolamine (DEA), morpholine (MOR), and 3-pyridinecarboxylic acid   (3-PCA)). The new complexes (1--3) were characterized by   elemental analysis and spectroscopic methods and the molecular structure of   1a was determined by X-ray diffraction studies. These complexes   were applied in the Suzuki--Miyaura cross-coupling reaction of phenylboronic   acid with aryl halides in neat water. The activities of catalysts were   monitored by gas chromatography--flame ionization detector and nuclear   magnetic resonance. Whereas the complexes with DEA or 3-PCA ligands did not   show significant difference in the activity, the BIAN-IPr complexes   1b and 3b bearing DEA and 3-PCA, displayed the highest   catalytic activity at 100 °C.

Makale detayları

(NHC)-Pd(II) complexes with hydrophilic nitrogen ligands: catalytic properties in neat water

Yazarlar: Hayati TÜRKMEN | Lütfiye GÖK | İbrahim KANİ | Bekir ÇETİNKAYA

Yayıncı: TUBITAK

Dergi: Turkish Journal of Chemistry 2013 Vol.37 Issue 4, pp.633-642

Belge Tipi: Makale

Yayın Tarihi: 3/2013

Belge Dili: Türkçe

Document ID (Org No.): 2000727391

Sıklık: İki Aylık

eISSN: 1303-6130

pISSN: 1300-0527

Sayı

Yazarlar:

Hayati TÜRKMEN | Lütfiye GÖK | İbrahim KANİ | Bekir ÇETİNKAYA

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2013 Vol.37 Issue 4, pp.633-642

Belge Tipi:

Makale

Yayın Tarihi:

3/2013

Belge Dili:

Türkçe

Document ID (Org No.):

2000727391

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527