通过用C 4 F 9 SO 3处理Cp 2 ZrCl 2成功地合成了茂锆双(全氟丁烷磺酸盐)[Cp 2 Zr(OSO 2 C 4 F 9)2 ·2H 2 O]。Ag,并且具有空气稳定性,耐水性,高热稳定性和强路易斯酸性的性质。该络合物在温和无溶剂的条件下,通过Kabachnik-Fields反应醛/酮,胺和亚磷酸二乙酯,显示出对α-氨基膦酸酯合成的高催化效率。此外,在五个周期的测试中,它可以重复使用而不会失去活动。与我们先前报道的Cp 2 Zr(OSO 2 C 8 F 17)2 ·3H 2 O·THF配合物相比,该配合物表现出更好的催化活性。
A simple and efficient synthesis of α-aminophosphonates has been developed via the one-pot three-component reactions of aldehydes, amines, and trialkyl phosphites. The reactions occurred rapidly at room temperature in the presence of 1 equiv of propylphosphonic anhydride (T3P®) as the condensing agent, and the α-aminophosphonate products were obtained in high yields.
Highly efficient one-pot multi-component synthesis of α-aminophosphonates and bis-α-aminophosphonates catalyzed by heterogeneous reusable silica supported dodecatungstophosphoric acid (DTP/SiO2) at ambient temperature and their antitubercular evaluation against Mycobactrium Tuberculosis
作者:Shafeek A. R. Mulla、Mohsinkhan Y. Pathan、Santosh S. Chavan、Suwara P. Gample、Dhiman Sarkar
DOI:10.1039/c3ra45853a
日期:——
A highly efficient one-pot multi-component reaction (MCR) protocol over DTP/SiO2 has been developed for the synthesis of α-aminophosphonate derivatives (4aâx) in excellent yields. The α-aminophosphonate derivatives were for the first time evaluated for their antitubercular activity against the M. tuberculosis H37Ra (MTB) strain. An evaluation of the data on the cytotoxicity and antimicrobial activity shows that 4n and 4v are promising antitubercular agents.