A General,Highly Efficient Ullmann C-O Coupling Reaction under Microwave Irradiation and the Effects of Water

• 来源期刊: 中国化学(英文版)
• 年，卷（期）: 2007,（4）
• 页码范围: 546-552
• 页数: 7页
• 语种: 英文

摘要

A general,rapid and highly efficient method for the synthesis of diaryl ethers under the assistance of microwave irradiation was described.A series of diaryl ethers were prepared by direct coupling of phenols and aryl halides in good to excellent yields in anhydrous DMF or NMP at 150℃ within 20 min.The presence of water was found to have a significant impact on the Ullmann C-O coupling reaction between aryl halides and phenols under microwave irradiation.