title: A mild and efficient ultrasound-assisted synthesis of diaryl ethers without any catalyst.
abstract: Diaryl ethers have been prepared by a mild and efficient S(N)Ar reaction by coupling of various phenols including that having a electron-withdrawing group with activated fluoroarenes using sonication in good to excellent yields at very low temperature (58 degrees C) under catalyst-free.
authors.affiliation: College of Science, Northwest A&F University, Yangling 712100, Shaanxi Province, PR China. xhzjyy@yahoo.com.cn
authors.forename: Hui
authors.initials: H
authors.lastname: Xu
authors.forename: Wu-Ming
authors.initials: WM
authors.lastname: Liao
authors.forename: Hong-Feng
authors.initials: HF
authors.lastname: Li