Synthesis 2017; 49(04): 802-809
DOI: 10.1055/s-0036-1588662
short review
© Georg Thieme Verlag Stuttgart · New York

Perspectives on Intermolecular Azomethine Ylide [3+2] Cycloadditions with Non-Electrophilic Olefins

Jorge Otero-Fraga
Department of Organic Chemistry and Berzelii EXSELENT Center for Porous Materials Stockholm University, Arrhenius Laboratory, 106 91 Stockholm, Sweden   Email: abraham.mendoza@su.se
,
Marc Montesinos-Magraner
Department of Organic Chemistry and Berzelii EXSELENT Center for Porous Materials Stockholm University, Arrhenius Laboratory, 106 91 Stockholm, Sweden   Email: abraham.mendoza@su.se
,
Abraham Mendoza*
Department of Organic Chemistry and Berzelii EXSELENT Center for Porous Materials Stockholm University, Arrhenius Laboratory, 106 91 Stockholm, Sweden   Email: abraham.mendoza@su.se
› Author Affiliations
Further Information

Publication History

Received: 26 September 2016

Accepted after revision: 02 November 2016

Publication Date:
15 December 2016 (online)


The authors contributed equally.

Dedicated to Prof. Paul Knochel.

Abstract

Our interest in the synthesis of compact nitrogen heterocycles from abundant sources has motivated a critical analysis of the status in azomethine ylide chemistry. Despite the outstanding developments in catalytic enantioselective [3+2] cycloadditions, these are still limited to electron-poor olefins. Only a few examples can be found in the literature that report on cycloadditions using non-electrophilic alkenes and those are compiled herein. With this account we aim to extract lessons and challenges that will inspire future breakthroughs in this area.

1 Introduction

2 State-of-the-Art Using Electron-Poor Olefins

3 Research on Activated Non-Electrophilic Olefins

3.1 Aromatic Olefins

3.2 Polyenes

3.3 Hetero-Substituted Olefins

3.4 Rare Examples with Alkyl-Substituted Olefins: Norbornadiene and Tethered α-Olefins

4 Extracted Generalities

4.1 Kinetic Barrier to Non-Electrophilic Olefins

4.2 Charge Concentration: An Unsolved Thermodynamic Penalty

5 Conclusions and Outlook