Synlett 2013; 24(12): 1471-1484
DOI: 10.1055/s-0033-1338840
account
© Georg Thieme Verlag Stuttgart · New York

When Alkyne π-Activation Meets Pinacol-Type [1,2]-Rearrangement: On the Invention of Domino Reactions for the Synthesis of Carbocycles and Heterocycles

Klaus-Daniel Umland
Organic Chemistry, Bergische Universität Wuppertal, Gaußstr. 20, 42119 Wuppertal, Germany   Fax: +49(202)4392648   Email: sfkirsch@uni-wuppertal.de
,
Stefan F. Kirsch*
Organic Chemistry, Bergische Universität Wuppertal, Gaußstr. 20, 42119 Wuppertal, Germany   Fax: +49(202)4392648   Email: sfkirsch@uni-wuppertal.de
› Author Affiliations
Further Information

Publication History

Received: 20 March 2013

Accepted after revision: 18 April 2013

Publication Date:
20 June 2013 (online)


Dedicated to Prof. Dr. Dr. h.c. Lutz F. Tietze, the inventor of ‘domino reactions’.

Abstract

This is a personal account on how to create domino re­actions consisting of catalyzed or uncatalyzed alkyne activation, ­cyclization, and subsequent rearrangement by a [1,2]-shift. In the context of literature reports on breakthrough works, we discuss our motivation, challenges, and success stories. The title reactions were developed with the goal of rapidly evolving molecular complexity in an experimentally easy manner. The value of the reactions in controlled syntheses of various carbocyclic and heterocyclic scaffolds through changing the nature of the substrate and the exact reaction conditions is demonstrated.

1 Introduction

2 Carbocyclizations

2.1 6-Endo Cyclization

2.2 6-Exo Cyclization

3 Heterocyclizations

4 Miscellaneous Reactions

5 Conclusions