Near-infrared fluorophores containing benzo[c]heterocycle subunits.
Title
Near-infrared fluorophores containing benzo[c]heterocycle subunits.
Publication Type
Journal Article
Year of Publication
2008
Journal
Organic letters
Volume
10
Pagination
2991–3
Date Published
jul
ISSN
1523-7060
Keywords
Benzene Derivatives, Benzene Derivatives: chemical synthesis, Benzene Derivatives: chemistry, Fluorescent Dyes, Fluorescent Dyes: chemical synthesis, Fluorescent Dyes: chemistry, Heterocyclic Compounds, Heterocyclic Compounds: chemical synthesis, Heterocyclic Compounds: chemistry, Molecular Structure, Near-Infrared, Spectroscopy
Abstract
The syntheses and spectroscopic properties of eight new push-pull-type near-infrared fluorophores that contain either isobenzofuran or isothianaphthene subunits are presented. The isobenzofuran dyes demonstrate significantly red-shifted absorption compared with their isothianaphthene counterparts, which is attributed to isobenzofuran’s more potent pro-quinoidal character.