Cascade Annulation Strategy for Expeditious Assembly of Hydroxybenzo[c]chromen-6-ones and Their Photophysical Property Studies

Autor: Liu, Yanan, Choy, Pui Ying, Wang, Demao, Wu, Mengdi, Tang, Qiang, He, Xinwei, Shang, Yongjia, Kwong, Fuk Yee
Zdroj: The Journal of Organic Chemistry; December 2023, Vol. 88 Issue: 23 p16609-16620, 12p
Abstrakt: A 1,8-diazabicyclo[5.4.0]undec-7-ene-promoted cascade double-annulation of ortho-alkynyl quinone methide (in situ generated from modular propargylamine) for constructing of 2-aryl-4-hydroxybenzo[c]chromen-6-ones is developed. This synthetic strategy offers remarkable operational simplicity as it allows the use of benchtop-grade solvents without the need for predrying measures and inert atmosphere protection. Additionally, it demonstrates good functional group compatibility. The photophysical properties of these compounds were also examined, revealing bright fluorescence with high quantum yields.
Databáze: Supplemental Index