Green Synthesis and Bioactivity of 2-Amino-4<i>H</i>-chromen-4-yl-phosphonates
作者:Mekala Rajasekhar、Kunda Uma Maheswara Rao、Chereddy Syama Sundar、Nemallapudi Bakthavatchala Reddy、Sandip Kumar Nayak、Cirandur Suresh Reddy
DOI:10.1248/cpb.c12-00160
日期:——
A simple and efficient one pot synthesis of 2-amino-4H-chromen-4-yl phosphonate derivatives has been accomplished by the condensation of salicylaldehyde, malononitrile/ethylcyanoacetate and triethyl phosphite/trimethyl phosphite in the presence of molecular iodine as catalyst in water at room temperature. All the reactions were very clean and the products were obtained in very good to excellent yields. The title compounds are characterized by IR, 1H-, 13C-, 31P-NMR and mass spectra, also studied their antimicrobial and antioxidant activity.
通过在室温下在水中使用分子碘作为催化剂,采用水杨 aldehyde、丙二腈/乙基氰基乙酸酯和三乙基磷酸酯/三甲基磷酸酯的缩合反应,成功实现了一种简单高效的一锅法合成2-氨基-4H-香烯-4-基磷酸酯衍生物。所有反应均非常干净,产物的收率从非常好到优秀。标题化合物通过红外光谱、1H-、13C-、31P-NMR及质谱进行表征,并研究了其抗菌和抗氧化活性。