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Science 7 February 1997:
Vol. 275. no. 5301, pp. 823 - 826
DOI: 10.1126/science.275.5301.823
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Reports

Fluorous Synthesis: A Fluorous-Phase Strategy for Improving Separation Efficiency in Organic Synthesis

Armido Studer, Sabine Hadida, Rafael Ferritto, Sun-Young Kim, Patrick Jeger, Peter Wipf, Dennis P. Curran *

Recovery and purification difficulties can limit the yield and utility of otherwise successful organic synthesis strategies. A "fluorous synthesis" approach is outlined in which organic molecules are rendered soluble in fluorocarbon solvents by attachment of a suitable fluorocarbon group. Fluorocarbon solvents are usually immiscible in organic solutions, and fluorous molecules partition out of an organic phase and into a fluorous phase in a standard liquid-liquid extraction. Simple yet substantive separations of organic reaction mixtures are achieved without resorting to chromatography. Because fluorous synthesis combines in many respects the favorable purification features of solid-phase synthesis with the favorable reaction, identification, and analysis features of traditional organic synthesis, it should prove valuable in the automated synthesis of libraries of individual pure organic compounds.

Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA.
*   To whom correspondence should be addressed.

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