Synthesis 2022; 54(13): 2991-3004
DOI: 10.1055/s-0040-1719908
short review

Epoxydibenzo[b,f][1,5]diazocines: From a Hidden Structural Motif to an Efficient Solvent-Free Synthetic Protocol

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Financial support for this work was provided by Narodowe Centrum Nauki (the Polish National Science Centre; Grant SONATA BIS 2017/26/E/ST5/00510).


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Abstract

Epoxydiazocines belong to the rare class of small V-shaped molecules, closely related to Tröger’s base. Due to their intriguing, unique structure, they could serve as molecular building blocks for supramolecular chemistry. An extensive review on their synthesis is contained in this article. Moreover, our recent findings devoted to efficient and easily scalable synthesis of fluorinated epoxy[1,5][b,f]diazocines through solvent-free base-catalyzed condensation of ortho-aminophenones is provided. The unique V-shaped structure was confirmed by X-ray crystal structure analysis. Furthermore, the rigidity of the epoxy­diazocine skeleton allowed for racemate separation and the configuration of enantiomers was established by combining quantum chemical calculations and chiroptical methods.

1 Introduction

2 Synthetic Efforts Towards Epoxydibenzo[b,f][1,5]diazocines

3 Synthetic Efforts Towards Fluorinated Epoxydibenzo[b,f][1,5]diazocines

4 Conclusion



Publication History

Received: 16 December 2021

Accepted after revision: 14 February 2022

Article published online:
14 March 2022

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