5-Nitrobenzimidazole containing Pd(II) catalyzed C-C cross-coupling reactions: The effect of the N-substituent of the benzimidazole structure on catalyst activity

Küçük Resim Yok

Tarih

2019

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Elsevier Science Bv

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Özet

A series of Pd(II) complexes (1a-e) were successfully synthesized by reaction of N-substituted 5-nitrobenzimidazole with [PdCl2(CNCH3)(2)] in toluene under argon reflux condition. Their catalytic activity in the Suzuki-Miyaura and Mizoroki-Heck coupling reactions were investigated. All these complexes were characterized by elemental analysis, H-1 NMR, C-13 NMR and IR spectroscopy. The catalytic activities of N-substituted 5-nitrobenzimidazole palladium (II) complexes were screened in Mizoroki-Heck and Suzuki-Miyaura coupling reactions. The reactions were optimized for the most suitable temperature, solvent and base system. The Pd(II) complexes exhibited good catalytic activity at the Mizoroki-Heck reaction. Additionally, the Suzuki-Miyaura showed relatively excellent activity at the coupling reaction. (C) 2019 Elsevier B.V. All rights reserved.

Açıklama

Anahtar Kelimeler

5-Nitrobenzimidazole, Catalytic activity, Suzuki-Miyaura, Spectroscopy

Kaynak

Journal of Molecular Structure

WoS Q Değeri

Q3

Scopus Q Değeri

Q2

Cilt

1192

Sayı

Künye