| Literature DB >> 16238351 |
James P Bacci1, Aaron M Kearney, David L Van Vranken.
Abstract
[reaction: see text] A two-step method for the synthesis of 9-aryl-6-hydroxy-3H-xanthen-3-one fluorophores involving condensation of aryl aldehydes and fluororesorcinol is shown to proceed through a triarylmethane intermediate. The condensation is complicated by retro-Friedel-Crafts reactions which can be minimized by controlling the amount of acid. The xanthenone ring system is prepared by a final oxidative cyclization with DDQ.Entities:
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Year: 2005 PMID: 16238351 DOI: 10.1021/jo051243i
Source DB: PubMed Journal: J Org Chem ISSN: 0022-3263 Impact factor: 4.354