Article
2021
·
3 citations
Dibenzosuberenone-Based Photo- and Thermochromic Switches, a Transformation: Rearrangement of Dibenzosuberenones to Spiro Anthrones
Abstract
In this study, a new class of photo- and thermochromic compounds was discovered. Fluorescent dihydropyridazine-appended dibenzosuberenone derivatives with central seven-membered rings were converted to colorless spiro anthrones with central six-membered rings by thermal isomerization or visible-light (420 nm) irradiation. Under UV light (350 nm), the spiro anthrones converted back to benzosuberenones. The chemical structures of the spiro anthrones were determined by NMR, UV-vis spectroscopy, and HRMS analyses. It was also observed that the dibenzosuberenone derivatives were oxidized on exposure to UV irradiation for a long time.
Keywords
FLUORESCENCE
DESIGN
ION
FLUOROPHORES
COLOR
WoS Categories
Chemistry, Organic
Citation
- Journal
- ORGANIC LETTERS
- Year
- 2021
- Volume
- 23
- Issue
- 11
- Pages
- 4483-4487
- ISSN
- 1523-7060
- eISSN
- 1523-7052
- DOI
- 10.1021/acs.orglett.1c01413
- WoS UID
- WOS:000661126700076