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Mizoroki-Heck Cross-coupling Reactions Catalyzed by Dichloro{bis[1,1',1''-(phosphinetriyl)tripiperidine]}palladium Under Mild Reaction Conditions
Published on: March 20, 2014
Palladium complexes with stabilized germylene and stannylene ligands
Marina M Kireenko1, Kirill V Zaitsev, Yuri F Oprunenko
1B-234 Leninskie Gory, Chemistry Department, Moscow State University, 119991 Moscow, Russia.
Dalton Transactions (Cambridge, England : 2003)
|February 13, 2013
Summary
Novel palladium complexes featuring germylene and stannylene ligands were synthesized and characterized. These new metal complexes demonstrated catalytic activity in Suzuki-Miyaura and Heck cross-coupling reactions.
Area of Science:
- Organometallic Chemistry
- Coordination Chemistry
- Catalysis
Background:
- Palladium complexes are crucial catalysts in cross-coupling reactions.
- Germylene and stannylene ligands offer unique electronic and steric properties for metal complexation.
Purpose of the Study:
- To synthesize novel palladium complexes incorporating germylene and stannylene ligands.
- To characterize the structure and evaluate the catalytic potential of these new complexes.
Main Methods:
- Synthesis via ligand substitution reactions or direct reaction with free germylenes/stannylenes.
- Structural determination using single crystal X-ray diffraction.
- Catalytic activity assessment in Suzuki-Miyaura and Heck cross-coupling reactions.
Main Results:
- Successful synthesis of two novel palladium complexes: [MeN(CH2CH2NC6F5)2Sn]4Pd (2) and [MeN(CH2CPh2O)(CH2CH2O)Ge]4Pd (8).
- X-ray diffraction confirmed the crystal structures of complexes 2 and 8.
- Complexes 2 and 8 exhibited catalytic activity in Suzuki-Miyaura and Heck cross-coupling reactions.
Conclusions:
- The study reports the successful synthesis and structural elucidation of new palladium-germylene and palladium-stannylene complexes.
- These novel complexes show promise as catalysts in important carbon-carbon bond-forming reactions.
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