<scp>l</scp>-Proline as an efficient enantioinduction organo-catalyst in the solvent-free synthesis of pyrazolo[3,4-b]quinoline derivatives via one-pot multi-component reaction
作者:Deboshikha Bhattacharjee、Baskhemlang Kshiar、Bekington Myrboh
DOI:10.1039/c6ra22429f
日期:——
The role of L-proline as an efficient organo-catalyst for the three-component synthesis of pyrazoloquinolinones involving dimedone, 3-methyl-1H-pyrazol-5-amine and various aryl aldehydes under mild solvent-free condition is reported. Besides the several advantages offered by this method such as its generality, simplicity, high yields and environment friendly reaction, the most notable is the ability
据报道,L-脯氨酸作为有效的有机催化剂,可在温和的无溶剂条件下,由三甲酮,3-甲基-1H-吡唑-5-胺和各种芳基醛组成的吡唑并喹啉酮三组分合成。除了该方法具有的通用性,简单性,高收率和环境友好的反应等优点外,最显着的是催化剂影响反应中不对称诱导的能力。有趣的是,观察到除了作为有效的催化剂外,L-脯氨酸还在合成的吡唑并喹啉酮衍生物中赋予了对映选择性。