Microwave-assisted synthesis of symmetric and asymmetric viologens
摘要:
Viologens are generally synthesized by N-alkylating 4,4'-bipyridine with alkyl halides. Under conventional heating conditions, however, their synthesis suffers from long reaction times and, often, low yields. In this work, symmetric and asymmetric viologens were synthesized under the assistance of microwave irradiation in good to excellent yields and in short reaction times. (c) 2010 Elsevier Ltd. All rights reserved.
Solid herbicidal compositions containing a bipyridinium quaternary salt
申请人:Merck & Co., Inc.
公开号:EP0174101B1
公开(公告)日:1989-10-18
Microwave-assisted synthesis of symmetric and asymmetric viologens
作者:Massimiliano Lamberto、Elizabeth E. Rastede、Justyne Decker、Françisco M. Raymo
DOI:10.1016/j.tetlet.2010.08.070
日期:2010.10
Viologens are generally synthesized by N-alkylating 4,4'-bipyridine with alkyl halides. Under conventional heating conditions, however, their synthesis suffers from long reaction times and, often, low yields. In this work, symmetric and asymmetric viologens were synthesized under the assistance of microwave irradiation in good to excellent yields and in short reaction times. (c) 2010 Elsevier Ltd. All rights reserved.