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Updated: Jun 14, 2026
![Mizoroki-Heck Cross-coupling Reactions Catalyzed by Dichloro{bis[1,1',1''-(phosphinetriyl)tripiperidine]}palladium Under Mild Reaction Conditions](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F51444.jpg&w=3840&q=50)
Mizoroki-Heck Cross-coupling Reactions Catalyzed by Dichloro{bis[1,1',1''-(phosphinetriyl)tripiperidine]}palladium Under Mild Reaction Conditions
Published on: March 20, 2014
A stable 1,2-disilacyclohexene and its 14-electron palladium(0) complex
Takashi Abe1, Takeaki Iwamoto, Mitsuo Kira
1Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan.
Researchers synthesized a novel stable cyclic disilene and a palladium complex. This disilene palladium complex exhibits the strongest pi-complex character reported to date, advancing organosilicon chemistry.
Area of Science:
- Organosilicon Chemistry
- Coordination Chemistry
Background:
- Cyclic disilenes are silicon analogs of cyclic carbenes, offering unique reactivity.
- Stable disilenes are challenging to synthesize due to silicon's high reactivity.
Purpose of the Study:
- To synthesize a novel stable cyclic disilene with small residual substituents.
- To synthesize and characterize a disilene palladium complex and evaluate its electronic properties.
Main Methods:
- Synthesis of 1,2-diphenyl-3,3,6,6-tetrakis(trimethylsilyl)-1,2-disilacyclohexene via reaction of 1,4-dilithiobutane with phenylchlorosilane.
- Formation of a Y-shaped disilene palladium complex through reaction with bis(tricyclohexylphosphine)palladium.
Main Results:
- A novel stable cyclic disilene, 1, was successfully synthesized.
- A stable tricoordinate Y-shaped disilene palladium complex, 2, was formed.
- Complex 2 displayed the strongest pi-complex character among known disilene palladium complexes.
Conclusions:
- The developed synthetic strategy is applicable for creating stable cyclic disilenes with small substituents.
- The synthesized disilene palladium complex represents a significant advancement in understanding metal-disilene bonding.
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