Albert Eschenmoser (born August 5, 1925) is a Swiss chemist working at the ETH Zurich and The Scripps Research Institute.
His work together with Lavoslav Ružička on terpenes and the postulation of squalene cyclization to form lanosterol improved the insight into steroid biosynthesis.1
In the early 1960s, Eschenmoser began work on what was the most complex natural product synthesized at the time - vitamin B12. In a remarkable collaboration with his colleague Robert Burns Woodward in Harvard, a team of almost one hundred students and postdoctoral workers worked for many years on the synthesis of this molecule. The work was finally published in 1973, and it marked a landmark in the history of organic chemistry.
The Eschenmoser fragmentation, the Eschenmoser sulfide contraction and Eschenmoser's salt are named after him.
- This article incorporates information from the equivalent article on the German Wikipedia.
- Core Prize of the ETH Zurich (1949)
- Werner Prize of the Swiss Chemical Society
- Ruzicka Prize of the ETH Zurich (1958)
- Ernest Guenther Award (1966)
- Austrian Cross of Honour for Science and Art (1974)2
- Davy Medal (1978)
- Tetrahedron Prize for Creativity in Organic Chemistry (1981)
- Wolf Prize of the Wolf Foundation, Tel Aviv, Israel (1986)
- Oparin Medal (2002)
- Frank H. Westheimer Medal (Harvard University, 2004)
- F.A. Cotton Medal for Excellence in Chemical Research of the American Chemical Society
- Paul Karrer Medal (University of Zurich, 2008)
- 2008 Benjamin Franklin Medal in Chemistry from the Franklin Institute in Philadelphia, Pennsylvania 
- Honorary doctorates (Dr. hc) from the University of Fribourg (Switzerland, 1966), University of Chicago (USA, 1966), University of Edinburgh (United Kingdom, 1979), University of Bologna (Italy, 1989), Johann Wolfgang Goethe University (Frankfurt am Main, 1990), Louis Pasteur University (France, 1991), Harvard University (USA, 1993), Scripps Research Institute (USA, 2000) and the University of Innsbruck (Austria, 2010).