Volume 127, Issue 10 pp. 3164-3168
Zuschrift

Asymmetric Rhodium-Catalyzed Addition of Thiols to Allenes: Synthesis of Branched Allylic Thioethers and Sulfones

Adrian B. Pritzius

Adrian B. Pritzius

Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstrasse 21, 79104 Freiburg im Breisgau (Germany)

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Prof. Dr. Bernhard Breit

Corresponding Author

Prof. Dr. Bernhard Breit

Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstrasse 21, 79104 Freiburg im Breisgau (Germany)

Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstrasse 21, 79104 Freiburg im Breisgau (Germany)Search for more papers by this author
First published: 16 January 2015
Citations: 47

This work was supported by the DFG, the International Research, Training Group “Catalysts and Catalytic Reactions for Organic, Synthesis” (IRTG 1038), the Fonds der Chemischen Industrie, and the Krupp Foundation. We thank Umicore, BASF, and Wacker for generous gifts of chemicals. Ina Rohleff is acknowledged for skillful technical assistance.

Abstract

A highly regio- and enantioselective hydrothiolation of terminal allenes, a reaction which fulfills the criteria of atom economy, is reported. Applying two chiral rhodium catalyst systems, a wide variety of thiols and allenes could be coupled. Oxidation gave access to the corresponding allylic sulfones in essentially enantiomerically pure form. The reaction tolerates a variety of functional groups and labeling experiments gave first insights into the reaction mechanism of this new methodology.

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