Structure Activity Relationship, Drug Likeness and Evaluation of Antioxidant Activity of Some Mannich Bases of Dihydropyrimidinones
作者:Ravinder Mamidala、Solomon Raj S. Bhimathati、Aparna Vema
DOI:10.14233/ajchem.2019.22008
日期:2019.7.7
A series of 21 O- and N-Mannich bases of 3,4-dihydropyrimidinones (2a-j and 3a-k) were synthesized by using microwave irradiation technique by multi-component reaction in two steps. All the compounds were evaluated for their free radical scavenging activity by four methods. Structure activity relationship studies revealed that the compounds 2h, 2g, 3h and 3g exhibited profound antioxidant properties
The acid functionalized SSi-GO was used as a highly active, selective and reusable catalyst to improve the formation of pyrimidinones.
酸功能化的SSi-GO被用作高活性、选择性和可重复使用的催化剂,以改善嘧啶酮的形成。
Iodotrimethylsilane-Accelerated One-Pot Synthesis of 5-Unsubstituted 3,4-Dihydropyrimidin-2(1H)-ones: A Novel Procedure for theBiginelli-Like Cyclocondensation Reaction at Room Temperature
作者:Gowravaram Sabitha、Kusuma B. Reddy、Rangavajjula Srinivas、Jillu S. Yadav
DOI:10.1002/hlca.200590242
日期:2005.11
A novel Biginelli-like cyclocondensation reaction is efficiently catalyzed by iodotrimethylsilane (Me3SiI) in MeCN. The reaction proceeds at room temperature by a three-component one-pot condensation of ketones with aldehydes and urea to afford 5-unsubstituted 3,4-dihydropyrimidin-2(1H)-ones in good yields (Scheme 1 and Table).
Green Biginelli-type Reaction: Solvent-free Synthesis of 5-unsubstituted 3,4-dihydropyrimdin-2(1<i>H</i>)-ones
作者:Min Wang、Jilei Song、Qilin Lu、Qinglin Wang
DOI:10.1002/jhet.2279
日期:2015.11
The Biginelli‐type compounds, 5‐unsubstituted 3,4‐dihydropyrimdin‐2(1H)‐ones were synthesized by a one‐pot three‐component condensation of aromatic aldehydes, aromatic ketones and urea in the presence of SnCl4 · 5H2O under solvent‐free conditions. The advantages of this method are short reaction time (4–10 min), excellent yields (74–97%), inexpensive catalyst and solvent‐free conditions. A plausible
Three-components condensation catalyzed by molecular iodine for the synthesis of 2,4,6-triarylpyridines and 5-unsubstituted-3,4-dihydropyrimidin-2(1H)-ones under solvent-free conditions
作者:Yi-Ming Ren、Chun Cai
DOI:10.1007/s00706-008-0011-8
日期:2009.1
One-pot, three-components synthesis of 2,4,6-triarylpyridines and 5-unsubstituted-3,4-dihydropyrimidin-2(1H)-ones was performed under solvent-free conditions using molecular iodine as the catalyst in moderate to good product yields.