# Ei-ichi Negishi

> Japanese chemist (1935 - 2021)

**Wikidata**: [Q105927](https://www.wikidata.org/wiki/Q105927)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Ei-ichi_Negishi)  
**Source**: https://4ort.xyz/entity/ei-ichi-negishi

## Summary
Ei-ichi Negishi was a Japanese chemist renowned for developing the Negishi coupling, a pivotal reaction in organic chemistry. Born in 1935, he received the 2010 Nobel Prize in Chemistry for his work on palladium-catalyzed cross-couplings, which revolutionized the synthesis of complex organic molecules. His career spanned academic and industrial roles in both Japan and the United States.

## Biography
- **Born**: 1935  
- **Nationality**: Japan  
- **Education**: Affiliated with the University of Tokyo, University of Pennsylvania, and Purdue University (specific degrees not detailed in source material).  
- **Known for**: Developing the Negishi coupling reaction.  
- **Employer(s)**: Purdue University, Syracuse University, Hokkaido University, Teijin (notable affiliations).  
- **Field(s)**: Organic chemistry, organometallic chemistry.  

## Contributions
- **Negishi Coupling (1970s)**: A palladium-catalyzed cross-coupling reaction enabling efficient synthesis of carbon-carbon bonds, widely used in pharmaceuticals and materials science.  
- **Nobel Prize in Chemistry (2010)**: Awarded for "palladium-catalyzed cross couplings in organic synthesis," shared with Richard F. Heck and Akira Suzuki.  
- **Academic Research**: Published extensively on organometallic chemistry, focusing on applications in organic synthesis.  

## FAQs
- **What is Ei-ichi Negishi best known for?**  
  He is best known for developing the Negishi coupling, a foundational reaction in modern organic chemistry.  

- **Where did Ei-ichi Negishi work?**  
  He held positions at Purdue University, Syracuse University, Hokkaido University, and the Japanese company Teijin, among other affiliations.  

- **What awards did Ei-ichi Negishi receive?**  
  Key honors include the 2010 Nobel Prize in Chemistry, the Order of Culture (Japan), a Guggenheim Fellowship, and the American Chemical Society Award in Organometallic Chemistry.  

- **How did his work impact science?**  
  His research transformed the synthesis of complex molecules, enabling advancements in drug development, agrochemicals, and materials science.  

## Why They Matter
Ei-ichi Negishi’s development of the Negishi coupling revolutionized organic synthesis by providing a versatile tool for constructing carbon-carbon bonds. This innovation underpins the creation of pharmaceuticals, natural products, and advanced materials, profoundly influencing medicine, agriculture, and industry. His work exemplifies the power of organometallic chemistry to drive practical applications, shaping the field for decades and inspiring subsequent breakthroughs in chemical synthesis.

## Notable For
- **2010 Nobel Prize in Chemistry** for palladium-catalyzed cross-coupling reactions.  
- **Order of Culture (Japan)**, recognizing his contributions to science and culture.  
- **Guggenheim Fellowship** and **American Chemical Society Award in Organometallic Chemistry**.  
- **Namesake Reaction**: The Negishi coupling, a cornerstone of modern organic chemistry.  
- **Academic Leadership**: Held professorships at Purdue University and Hokkaido University.  

## Body

### Early Life and Education  
Ei-ichi Negishi was born in 1935 in Japan. While specific details of his early education are not provided, his career trajectory reflects training in chemistry at prestigious institutions, including affiliations with the University of Tokyo and the University of Pennsylvania.  

### Career  
Negishi’s professional journey included roles at:  
- **Purdue University**: A key affiliation where he conducted seminal research in organometallic chemistry.  
- **Syracuse University** and **Hokkaido University**: Highlighting his contributions to academic institutions in both the U.S. and Japan.  
- **Teijin**: A Japanese chemical and pharmaceutical company, underscoring his ties to industrial research.  

### The Negishi Coupling  
Developed in the 1970s, the Negishi coupling reaction allows for the formation of carbon-carbon bonds using palladium catalysts. This method’s efficiency and versatility have made it indispensable in synthesizing complex molecules, from pharmaceuticals to organic electronics. The reaction’s impact was recognized with the 2010 Nobel Prize in Chemistry, shared with Richard F. Heck and Akira Suzuki.  

### Academic and Professional Honors  
Negishi’s work garnered international acclaim:  
- **Nobel Prize in Chemistry (2010)**: Celebrated for "palladium-catalyzed cross couplings in organic synthesis."  
- **Order of Culture (Japan)**: A prestigious honor awarded for outstanding cultural and scientific achievements.  
- **Guggenheim Fellowship**: Supporting his research in organometallic chemistry.  
- **American Chemical Society Award in Organometallic Chemistry**: Recognizing his foundational contributions to the field.  

### Legacy and Influence  
Negishi’s research transformed synthetic chemistry, enabling the efficient production of molecules critical to modern life. His collaboration with Herbert C. Brown at Purdue University further solidified his reputation as a pioneer in organometallic chemistry. The Negishi coupling remains a staple in industrial and academic labs worldwide, ensuring his legacy as a chemist who bridged fundamental science and practical application.  

### Affiliations and Memberships  
Beyond his academic roles, Negishi was affiliated with:  
- **National Academy of Sciences** (U.S.)  
- **American Academy of Arts and Sciences**  
- **American Association for the Advancement of Science**  

These memberships reflect his standing as a global leader in chemistry.  

### Global Impact  
Negishi’s work transcended national boundaries, fostering collaboration between Japanese and American scientific communities. His discoveries continue to drive innovation in pharmaceuticals, materials science, and green chemistry, ensuring his influence endures across disciplines and generations.

## References

1. Integrated Authority File
2. [Source](https://www.purdue.edu/newsroom/releases/2021/Q2/ei-ichi-negishi,-one-of-2-nobel-prize-winners-from-purdue-university,-dies.html)
3. [Source](http://onlinelibrary.wiley.com/doi/10.1002/ijch.198400013/abstract)
4. [Source](http://www.bloomberg.com/news/2010-10-06/heck-suzuki-negishi-win-nobel-chemistry-prize-for-linking-carbon-atoms.html)
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11. [Source](http://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/52051/1/Het86-1_735-743.pdf)
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