Synlett
DOI: 10.1055/a-2406-3243
synpacts

Recent Progress in (3+3) Cycloadditions of Bicyclobutanes to Access Bicyclo[3.1.1]heptane Derivatives

Jian-Jun Feng
This work was supported by the Fundamental Research Funds for the Central Universities, China.


Dedicated to Professor Junliang Zhang on the occasion of his 50th birthday.

Abstract

The synthesis of bicyclo[3.1.1]heptane (BCHeps) derivatives, which serve as three-dimensional (3D) bioisosteres of benzenes and are the core skeleton of several terpene natural products, is garnering growing interest. The (3+3) cycloadditions of bicyclobutanes (BCBs) represent an attractive method for efficiently accessing (hetero)BCHep skeletons with 100% atom economy. Herein, we give a brief summary of recent achievements in this approach for the synthesis of diverse BCHep derivatives, emphasizing our recent progress in the initial palladium-catalyzed (3+3) cycloadditions of bicyclobutanes with vinyl oxiranes.

1 Introduction

2 Radical (3+3) Cycloaddition Reaction

3 Polar (3+3) Cycloaddition Reaction

4 Palladium-Catalyzed Enantioselective (3+3) Cycloaddition Reaction

5 Conclusion



Publication History

Received: 17 July 2024

Accepted after revision: 28 August 2024

Accepted Manuscript online:
28 August 2024

Article published online:
08 October 2024

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