# Vladimir Prelog

> Bosnian-Swiss chemist (1906-1998)

**Wikidata**: [Q83501](https://www.wikidata.org/wiki/Q83501)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Vladimir_Prelog)  
**Source**: https://4ort.xyz/entity/vladimir-prelog

## Summary
Vladimir Prelog was a Bosnian-Swiss chemist (1906–1998) who made groundbreaking contributions to stereochemistry, earning the Nobel Prize in Chemistry in 1975 for his work on the stereochemistry of organic molecules. He is best known for developing the Cahn–Ingold–Prelog priority rules, which standardized the naming of stereoisomers in organic chemistry.

## Biography
- Born: July 23, 1906, Sarajevo, Austria-Hungary (now Bosnia and Herzegovina)
- Nationality: Bosnian, Swiss
- Education:
  - Studied at the University of Zagreb (1924–1928)
  - Earned his PhD from the Swiss Federal Institute of Technology (ETH Zurich) in 1928
- Known for: Pioneering work in stereochemistry, particularly the development of the Cahn–Ingold–Prelog priority rules
- Employer(s):
  - ETH Zurich (1930–1937)
  - Czech Technical University in Prague (1937–1939)
- Field(s): Organic chemistry, stereochemistry

## Contributions
- **Cahn–Ingold–Prelog Priority Rules (1951)**: Developed a systematic method for assigning priorities to substituents in organic molecules, which became the international standard for naming stereoisomers. This work was recognized with the Nobel Prize in Chemistry in 1975.
- **Stereochemistry Research**: Conducted extensive research on the stereochemistry of organic molecules, contributing to the understanding of molecular structure and reactivity.
- **Teaching and Mentorship**: Taught at ETH Zurich and the Czech Technical University in Prague, shaping the careers of numerous chemists.

## FAQs
**What was Vladimir Prelog’s most significant contribution to chemistry?**
Prelog’s most significant contribution was the development of the Cahn–Ingold–Prelog priority rules, which standardized the naming of stereoisomers in organic chemistry. This work earned him the Nobel Prize in Chemistry in 1975.

**Where did Vladimir Prelog receive his education?**
Prelog studied at the University of Zagreb (1924–1928) and earned his PhD from the Swiss Federal Institute of Technology (ETH Zurich) in 1928.

**Which institutions did Vladimir Prelog work at?**
Prelog worked at ETH Zurich (1930–1937) and the Czech Technical University in Prague (1937–1939).

**What awards did Vladimir Prelog receive?**
Prelog received numerous awards, including the Nobel Prize in Chemistry (1975), the August Wilhelm von Hofmann Medal, the Marcel Benoist Prize, the Centenary Prize, the Davy Medal, and honorary doctorates from various institutions.

**What is the Cahn–Ingold–Prelog priority rule?**
The Cahn–Ingold–Prelog priority rule is a set of guidelines for assigning priorities to substituents in organic molecules, which is essential for naming stereoisomers and understanding their chemical behavior.

## Why They Matter
Vladimir Prelog’s work in stereochemistry revolutionized organic chemistry by providing a standardized method for naming and understanding stereoisomers. His Cahn–Ingold–Prelog priority rules became the international standard, ensuring consistency in chemical nomenclature and research. Prelog’s contributions laid the foundation for modern stereochemistry, influencing generations of chemists and advancing the field of organic synthesis. His Nobel Prize recognition solidified his legacy as a pioneer in the field, shaping the way chemists approach molecular structure and reactivity.

## Notable For
- **Nobel Prize in Chemistry (1975)**: Awarded for his work on the stereochemistry of organic molecules.
- **Cahn–Ingold–Prelog Priority Rules**: Developed a systematic method for assigning priorities to substituents in organic molecules.
- **Teaching and Mentorship**: Taught at ETH Zurich and the Czech Technical University in Prague, mentoring numerous chemists.
- **Honorary Doctorates**: Received honorary doctorates from the University of Paris, the Weizmann Institute of Science, and the University of Zagreb.
- **Awards and Recognitions**: Received the August Wilhelm von Hofmann Medal, the Marcel Benoist Prize, the Centenary Prize, the Davy Medal, and the Order of Danica Hrvatska.
- **Honorary Citizen**: Named an honorary citizen of Sarajevo and Osijek.

## Body
### Early Life and Education
Vladimir Prelog was born on July 23, 1906, in Sarajevo, which was then part of Austria-Hungary. He studied at the University of Zagreb from 1924 to 1928, where he developed an early interest in chemistry. He earned his PhD from the Swiss Federal Institute of Technology (ETH Zurich) in 1928, where he continued his research in organic chemistry.

### Career and Research
Prelog began his academic career at ETH Zurich in 1930, where he conducted groundbreaking research in stereochemistry. His work focused on the stereochemistry of organic molecules, particularly the development of the Cahn–Ingold–Prelog priority rules. These rules provided a systematic method for assigning priorities to substituents, which became the international standard for naming stereoisomers.

In 1937, Prelog moved to the Czech Technical University in Prague, where he continued his research and teaching. His work on stereochemistry earned him widespread recognition in the scientific community, leading to his Nobel Prize in Chemistry in 1975.

### Awards and Honors
Prelog received numerous awards and honors throughout his career, including the Nobel Prize in Chemistry (1975), the August Wilhelm von Hofmann Medal, the Marcel Benoist Prize, the Centenary Prize, the Davy Medal, and honorary doctorates from the University of Paris, the Weizmann Institute of Science, and the University of Zagreb. He was also named an honorary citizen of Sarajevo and Osijek, and received the Order of Danica Hrvatska.

### Legacy and Influence
Vladimir Prelog’s contributions to stereochemistry have had a lasting impact on the field of organic chemistry. His Cahn–Ingold–Prelog priority rules are still used today to standardize the naming of stereoisomers. Prelog’s work has influenced generations of chemists and has shaped the way molecular structures are understood and studied.

Prelog’s teaching and mentorship at ETH Zurich and the Czech Technical University in Prague have also had a significant impact on the development of future chemists. His dedication to education and research has left a lasting legacy in the scientific community.

### Personal Life
Prelog was married and had two children. He passed away on January 7, 1998, in Zurich, Switzerland. His work continues to be celebrated and studied, ensuring his legacy as a pioneer in the field of stereochemistry.

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