Comparison of 2‑Arylnaphtho[2,3‑<i>b</i>]phospholes and 2‑Arylbenzo[<i>b</i>]phospholes:
Effects of 2‑Aryl Groups and Fused Arene Moieties on Their
Optical and Photophysical Properties
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Abstract
Suzuki–Miyaura
cross-coupling reactions were used in the
divergent synthesis of a series of 2-arylnaphtho[2,3-<i>b</i>]phosphole <i>P</i>-oxides and their benzo[<i>b</i>]phosphole counterparts. We elucidated the electronic and steric
effects of the 2-aryl groups and fused arene moieties on the optical
and photophysical properties of these two types of phosphole-based
π-systems