摘要 N , N , N ', N'- 四氯苯-1,3-二磺酰胺和聚( N , N'- 二氯 -N -乙基-苯-1,3-二磺酰胺)是通过乙酸铵,醛和各种1,3-二羰基的反应通过一锅,简便和四组分合成新的取代的1,4-二氢吡啶衍生物而开发的新型催化剂在室温和温和条件下具有良好到高收率的化合物。评价所有合成的化合物的抗菌和抗氧化活性。确定了对四种革兰氏阳性和阴性细菌的抗菌活性,并通过2,2-二苯基-1-吡啶并肼基自由基清除作用评估了抗氧化活性。生物测定结果表明,合成的1,4-二氢吡啶衍生物具有有效的抗氧化和抗菌作用。 图形摘要 新系列二氢吡啶的合成和生物学评价。
Efficient One-Pot Synthesis of Polyhydroquinoline Derivatives Using Silica Sulfuric Acid as a Heterogeneous and Reusable Catalyst Under Conventional Heating and Energy-Saving Microwave Irradiation
作者:Akbar Mobinikhaledi、Naser Foroughifar、Mohammad Ali Bodaghi Fard、Hassan Moghanian、Sattar Ebrahimi、Mehdi Kalhor
DOI:10.1080/00397910802513060
日期:2009.3.10
Abstract An efficientHantzsch four-component condensation reaction for the synthesis of polyhydroquinoline derivatives was reported under two conditions: solvent-free conventional heating and energy-saving microwave irradiation. The process is simple and environmentally benign, and the use of a heterogeneous and reusable catalyst, high yields, and short reaction times are the key features of this
Yb(OTf)(3) catalyzed efficient Hantzsch reaction via four-component coupling reactions of aldehydes. dimedone, ethyl acetoacetate and ammonium acetate at ambient temperature was described as the preparation of polyhydroquinoline derivatives. The process presented here is operationally simple, environmentally benign and has excellent yield. Furthermore, the catalyst can be recovered conveniently and reused efficiently. (C) 2004 Elsevier Ltd. All rights reserved.