ISBN-10:
3319370367
ISBN-13:
9783319370361
Pub. Date:
08/23/2016
Publisher:
Springer International Publishing
Synthesis and Reactivity of Donor-Acceptor Substituted Aminocyclopropanes and Aminocyclobutanes

Synthesis and Reactivity of Donor-Acceptor Substituted Aminocyclopropanes and Aminocyclobutanes

by Florian de Nanteuil

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Overview

This thesis presents a general approach to accessing nitrogen-substituted hetero- and carbocycles. In short, the annulation reactions developed in the thesis make it possible to access nitrogen-substituted four-, five- and six-membered rings, all essential building blocks for the synthesis of bioactive molecules. Many natural products display a saturated polycyclic core allowing a well-defined arrangement of functional groups in space. As such, they can interact with biological targets with a high degree of affinity and selectivity, surpassing many synthetic drugs. Nevertheless, the efficient synthesis of such complex ring systems poses a challenge for organic chemistry. Through careful tuning of the electronic properties of a nitrogen donor group and a diester acceptor group, the first [3+2] annulation reaction between aminocyclopropanes and enol ethers or carbonyl compounds is now possible. The reaction proceeded under mild catalytic conditions, and the building blocks obtained can be found at the core of bioactive alkaloids, drugs such as Ramipril and biomolecules such as DNA and RNA. Thanks to the dynamic kinetic asymmetric annulation of aminocyclopropanes with enol ethers and aldehydes, access to enantioenriched compounds is also now possible. Lastly, a synthesis of donor-acceptor aminocyclobutanes via [2+2] cycloaddition using a cheap iron catalyst was developed, allowing them to be used in [4+2] annulations to access cyclohexylamines.

Product Details

ISBN-13: 9783319370361
Publisher: Springer International Publishing
Publication date: 08/23/2016
Series: Springer Theses
Edition description: Softcover reprint of the original 1st ed. 2016
Pages: 315
Product dimensions: 6.10(w) x 9.25(h) x (d)

Table of Contents

Introduction.- Ring-Opening Reactions of Aminocyclopropanes.- Synthesis and [4+2] Annulation of Aminocyclobutanes.- Conclusions and Outlook.- Experimental Part.

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