Synthesis 2024; 56(09): 1335-1354
DOI: 10.1055/a-2169-4078
review

Heteroatom-Embedding Annulative π-Extension (Hetero-APEX) Reactions: An Overview

Hideto Ito
a   Graduate School of Science, Nagoya University, Chikusa, Nagoya 464-8602, Japan
,
Kou P. Kawahara
a   Graduate School of Science, Nagoya University, Chikusa, Nagoya 464-8602, Japan
,
a   Graduate School of Science, Nagoya University, Chikusa, Nagoya 464-8602, Japan
b   Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Chikusa, Nagoya 464-8602, Japan
› Institutsangaben
We thank the funding supports by JSPS KAKENHI (Grant Nos. 19H05463 to K.I.), the Noguchi Research Foundation (to H.I.), Foundation of Public Interest of Tatematsu (to H.I.) and the JSPS Research Fellowship for Young Scientists (to K.P.K) for the research on hetero-APEX chemistry.


Abstract

Heteroatom-embedded polycyclic aromatic compounds (hetero-PACs) are a class of organic compounds contributing to a variety of research fields such as materials science, chemical biology, and so on. For applications using hetero-PACs, efficient preparation of hetero-PACs is essential. In particular, reactions transforming unfunctionalized aromatic compounds into hetero-PACs using appropriate heteroatom-containing aromatic compounds (π-extending agents) represent the most ideal way to prepare hetero-PACs. In this review, such heteroatom-embedding annulative π-extension (hetero-APEX) reactions, including their reaction mechanisms and scope of substrates, are described.

1 Introduction

2 Oxa-APEX Reactions

3 Aza-APEX Reactions

4 Thia-APEX Reactions

5 Conclusion and Outlook



Publikationsverlauf

Eingereicht: 17. August 2023

Angenommen nach Revision: 06. September 2023

Accepted Manuscript online:
06. September 2023

Artikel online veröffentlicht:
18. Oktober 2023

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