Synthesis and catalytic evaluation of a ruthenium alkylidene complex bearing methoxy-pyridine ligand

Authors:  Sevil Çetinkaya, Emine Yaşar

Abstract:
Modern well-defined ruthenium alkylidene complexes became preferred catalysts for a great variety of metathesis reactions. In this study, an air-stable new ruthenium alkylidene catalyst bearing 3-methoxypyridine has been prepared in one pot at high yields using commercially available [(PCy₃₎₂Cl₂Ru CHPh] catalyst. Ruthenium based complex, (PCy₃)(3-MeOPy)₂(Cl)₂Ru CHPh, was characterized by a 1H NMR doublet at 20.00 (J = 11.9 Hz) for the Ru CH proton. The catalyst was tested in modelROMP reactions andfoundto be very effective for ring-openingmetathesispolymerization(ROMP). The optimal conditions for the polymerization of exo-N-benzylnorbornene-5,6-dicarboximide using the newly synthesized catalytic system were determined.

Keywords:
Ruthenium catalyst
ROMP
Metathesis
Polynorbornene dicarboximide
Homogeneous catalyst

Published in: Applied catalysis A: General  (Volumes 464–465, Pages 1-384, 15 August 2013)

Publisher: Elsevier  

ISSN Information: 0926-860X

Synthesis and catalytic evaluation of a ruthenium alkylidene complex bearing methoxy-pyridine ligand

Bình luận của bạn

*

*

*

*

 Captcha

Gửi bình luận nhập lại