Synthesis 2024; 56(02): 193-219
DOI: 10.1055/a-2109-0003
review

Synthetic Strategies for Accessing Dibenzophosphole Scaffolds

Hiroyuki Hattori
,
Kento Ishida
,
Norio Sakai


Abstract

Dibenzophospholes, phosphorus-containing π-conjugated cyclic compounds, have attracted considerable attention because of their potential applications in various functional materials such as those required for organic electroluminescent devices. Moreover, their synthetic methods have been widely developed. This review summarizes the construction strategies of dibenzophosphole scaffolds, including those developed recently.

1 Introduction

2 Construction of a Phosphole Skeleton Using Aryl Compounds

2.1 [4+1] Cyclization between Biaryl Derivatives and P1 Units

2.2 Intramolecular P–C Bond Formation of Biarylphosphines

2.3 Intramolecular C–C Bond Formation of Diarylphosphines

2.4 [3+2] Cyclization between Arylphosphines and Arenes

3 Fused-Benzene Ring Formation

4 Successive Phosphole Skeleton and Fused-Benzene Ring Formation

5 Conclusions



Publication History

Received: 17 May 2023

Accepted after revision: 12 June 2023

Accepted Manuscript online:
12 June 2023

Article published online:
25 July 2023

© 2023. Thieme. All rights reserved

Georg Thieme Verlag KG
Rüdigerstraße 14, 70469 Stuttgart, Germany