Volume 42, Issue 9 p. 957

Cover Picture: Molecular Mousetraps: Gas-Phase Studies of the Covalent Coupling of Noncovalent Complexes Initiated by Reactive Carbenes Formed by Controlled Activation of Diazo Precursors (Angew. Chem. Int. Ed. 9/2003)

Ryan R. Julian

Ryan R. Julian

Beckman Institute, California Institute of Technology, Pasadena, CA 91125, USA, Fax: (+1) 626-568-8641

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Jeremy A. May

Jeremy A. May

The Arnold and Mabel Beckman Laboratories of Chemical Synthesis, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125, USA, Fax: (+1) 626-564-9297

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Brian M. Stoltz Prof.

Brian M. Stoltz Prof.

The Arnold and Mabel Beckman Laboratories of Chemical Synthesis, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125, USA, Fax: (+1) 626-564-9297

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J. L. Beauchamp Prof.

J. L. Beauchamp Prof.

Beckman Institute, California Institute of Technology, Pasadena, CA 91125, USA, Fax: (+1) 626-568-8641

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First published: 26 February 2003

Abstract

Molecular mousetraps are an unprecedented class of host–guest reagents. In the example shown in the cover picture, 18-crown-6 ether is utilized as the “bait” to attract target molecules with a protonated primary amine functional group. Appropriate activation of the noncovalent complex springs the diazo “trap”, which leads to covalent attachment of the two molecules depicted in the reaction scheme. The research is detailed in the Communication by J. L. Beauchamp, B. M. Stoltz et al. on page 1012 ff.

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