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2,3-Methanopyrrolidines: Synthesis and Ring-opening Transformations

Abstract : New methods for the preparation of 2-azabicyclo[3.1.0]hexane compounds (2,3- methanopyrrolidines) have been developed over the past three decades. Once viewed as rather exotic molecules, they can now be considered as readily accessible, especially by intermolecular Simmons-Smith type reactions or by intramolecular titanium-mediated cyclopropanation (Kulinkovich-de Meijere reaction). Accordingly, a number of applications of these compounds have emerged: in particular, they are being used as mimics of pyrrolidine, piperidine or proline subunits for the development of novel bioactive molecules. The use of 2,3-methanopyrrolidines as precursors of more complex nitrogen-containing heterocyclic systems has also become a relevant idea. This chapter is organised in two sections: a brief review of the main methods of synthesis of 2,3-methanopyrrolidines is first presented. It is followed by a personal account of some of the transformation reactions that have been developed over the last fifteen years.
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Submitted on : Thursday, April 11, 2019 - 3:55:42 PM
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Yvan Six. 2,3-Methanopyrrolidines: Synthesis and Ring-opening Transformations. Targets in Heterocyclic Systems, 21 (2017), Società Chimica Italiana, pp.277-307, 2018, Reviews and Accounts on Heterocyclic Chemistry, 978-88-86208-87-1. ⟨10.17374/targets.2018.21.277⟩. ⟨hal-02096835⟩



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