Synthesis 2015; 47(03): 387-394
DOI: 10.1055/s-0034-1379487
paper
© Georg Thieme Verlag Stuttgart · New York

Preparation of 4-Halobenzoate-Containing Phosphane-Based Building Blocks for Labeling Reactions Using the Traceless Staudinger Ligation

Constantin Mamat*
a   Institut für Radiopharmazeutische Krebsforschung, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany   Email: c.mamat@hzdr.de
,
Martin Köckerling
b   Institut für Chemie, Anorganische Festkörperchemie, Universität Rostock, Albert-Einstein-Straße 3a, 18059 Rostock, Germany
› Author Affiliations
Further Information

Publication History

Received: 05 September 2014

Accepted after revision: 07 October 2014

Publication Date:
20 November 2014 (online)


Dedicated to the memory of Dr. Rainer Evers (Universität Rostock), deceased November 2013

Abstract

Functionalized phosphane-containing key building blocks were synthesized that are suitable for the labeling of biologically active molecules by the traceless Staudinger ligation. Thus, a 2-(diphenylphosphanyl)phenyl 4-stannylbenzoate building block was converted into the 4-iodobenzoate by the introduction of iodine. The traceless Staudinger ligation was used to introduce the resulting 4-iodobenzoate moiety into selected molecules of pharmacological interest. Furthermore, the labeling procedure was used to insert the 4-iodobenzoate moiety into a peptide on solid support. Finally, a convenient recovery procedure of the key phosphane building block 2-(diphenylphosphanyl)phenol from 2-(diphenylphosphoryl)phenol was evaluated.

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