Saul Winstein
Saul Winstein
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Saul Winstein | |
|---|---|
| Born | (1912-10-08)October 8, 1912 Montreal, Quebec, Canada |
| Died | November 23, 1969(1969-11-23) (aged 57) Los Angeles, California, United States |
| Nationality | Canadian |
| Known for | Winstein reaction Grunwald-Winstein equation Non-classical cation Anchimeric assistance |
| Awards | ACS Award in Pure Chemistry (1948) National Medal of Science (1970) |
| Scientific career | |
| Fields | Physical Organic Chemistry |
| Institutions | UCLA |
Saul Winstein (October 8, 1912 – November 23, 1969) was a Canadian chemist who discovered the Winstein reaction. He argued a non-classical cation was needed to explain the stability of the norbornyl cation.[1] This fueled a debate with Herbert C. Brown over the existence of σ-delocalized carbocations. Winstein also first proposed the concept of an intimate ion pair.[2] He was co-author of the Grunwald-Winstein equation, concerning solvolysis rates.[3]
Richard F. Heck, who earlier in his career had undertaken postgraduate studies with Winstein, won the 2010 Nobel Prize in Chemistry.[4]
References[edit]
^ Young, W. G.; Cram, D. J. (May 1970). "Professor Saul Winstein October 8, 1912-November 23, 1969". International Journal of Chemical Kinetics. 2 (3): 167–173. doi:10.1002/kin.550020302..mw-parser-output cite.citation{font-style:inherit}.mw-parser-output q{quotes:"""""""'""'"}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-limited a,.mw-parser-output .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}
^ Winstein, S.; Clippinger, E.; Fainberg, A. H.; Heck, R.; Robinson, G. C. (January 1956). "Salt Effects and Ion Pairs in Solvolysis and Related Reactions. III.1 Common Ion Rate Depression and Exchange of Anions during Acetolysis". Journal of the American Chemical Society. 78 (2): 328–335. doi:10.1021/ja01583a022.
^ W. G. Young, D. J. Cram (1951). "The Correlation of Solvolysis Rates and the Classification of Solvolysis Reactions Into Mechanistic Categories". Journal of the American Chemical Society. 73 (6): 2700&ndash, 2707. doi:10.1021/ja01150a078.
^ "The problem of the non-classical ion". Nobel Media. Retrieved 14 July 2015.
External links[edit]
- UCLA Biography
- Saul Winstein UCLA
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Categories:
- 1912 births
- 1969 deaths
- Canadian chemists
- National Medal of Science laureates
- Chemist stubs
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