Synthesis of Isoindolo[2,1-<i>a</i>]quinazoline Derivatives in Ionic Liquid Catalyzed by Iodine
作者:Lian Lu、Ke Yang、Mei-Mei Zhang、Xiang-Shan Wang
DOI:10.1002/jhet.1696
日期:2014.5
A mild, green, and facile method for the synthesis of 6,6a‐dihydroisoindolo[2,1‐a]quinazoline‐5,11‐dione derivatives is described in high yields using ionicliquids as green media. The method involves the reaction of 2‐aminobenzamides with 2‐formylbenzoic acid catalyzed by iodine and provides a new alkaloid library with potential activity for biomedical screening.
An Efficient Synthesis of Pyrrolo[1,2-<i>a</i>]quinazoline Derivatives in Ionic Liquid Catalyzed by Iodine
作者:Lian Lu、Ke Yang、Mei-Mei Zhang、Xiang-Shan Wang
DOI:10.1002/jhet.1116
日期:2014.5
A mild, green, and facile method for the synthesis of 2,3,3a,4‐tetrahydropyrrolo[1,2‐a]quinazoline‐1,5‐dione derivatives is described in high yields by using ionicliquids as green media. The method involves the reaction of 2‐aminobenzamides with 4‐oxopentanoic acid or 4‐aryl‐4‐oxo‐butanoic acid catalyzed by iodine and has the advantages of mild reaction conditions, high yields, one‐pot, operational
以离子液体为绿色介质,高收率地描述了一种温和,绿色且简便的合成2,3,3 a,4-四氢吡咯并[1,2 - a ]喹唑啉-1,5-二酮衍生物的方法。该方法涉及2-氨基苯甲酰胺与碘催化的4-氧代戊酸或4-芳基-4-氧代丁酸的反应,具有反应条件温和,收率高,单反应釜,操作简便和对环境无害的优点。 。
Green Synthesis of Quinazolinone Derivatives Catalyzed by Iodine in Ionic Liquid
作者:Shu-Liang Wang、Ke Yang、Chang-Sheng Yao、Xiang-Shan Wang
DOI:10.1080/00397911.2010.524340
日期:2012.2.1
Abstract A series of quinazolinone derivatives were synthesized by the reaction of 2-aminobenzamides and triethyl orthoformate or triphosgene in ionicliquid of [BMIm]BF4 at 80 °C catalyzed by iodine in good yields. Compared to other methods, this new procedure has the advantages of mild reaction conditions, good yields, operational simplicity, and environmentally friendly procedure. GRAPHICAL ABSTRACT
A Green Synthesis of Pyrido[1,2-<i>a</i>]quinazoline-1,6-dione Derivatives in Ionic Liquid Catalyzed by Iodine
作者:Lian Lu、Mei-Mei Zhang、Xiang-Shan Wang
DOI:10.1002/jhet.1837
日期:2014.8
A mild, green, and facile route to the synthesis of 3,4,4a,5-tetrahydro-4a-methyl-2H-pyrido[1,2-a]quinazoline-1,6-dionederivatives has been developed. In the presence of iodine, a variety of 2-aminobenzamides underwent a tandem reaction with 6-chlorohexan-2-one to afford the corresponding pyridoquinazolines in good to high yields.
A Green Synthesis of Pyrrolo[1,2-<i>a</i>]quinazolin-5(1<i>H</i>)-one Derivatives in Ionic Liquids Catalyzed by Iodine
作者:Jie-Xing Zhou、Lian Lu、Tuan-Jie Li、Chang-Sheng Yao、Xiang-Shan Wang
DOI:10.1002/jhet.1768
日期:2014.9
A series of 2,3,3a,4‐tetrahydro‐3a‐methylpyrrolo[1,2‐a]quinazolin‐5(1H)‐one derivatives were synthesized by a reaction of 2‐aminobenzamide and 5‐chloropentan‐2‐one at 80 °C catalyzed by iodine in ionicliquid of [BMIm]Br. Compared with the other methods, this novel method has the advantages of milder reaction conditions, high yields, environmental benignity, and metal‐free catalyst.