One-Step Synthesis and Bioassay of N-Phosphoramidophosphonates
作者:Mudumala Veera Narayana Reddy、Avula Balakrishna、Mungara Anil Kumar、Gangireddygari Chandra Sekhar Reddy、Arigela Uma Ravi Sankar、Cirandur Suresh Reddy、Tirupati Murali Krishna
DOI:10.1248/cpb.57.1391
日期:——
A simple one-step synthesis was accomplished for the preparation of N-phosphoramidophosphonates by a direct reaction of phosphoramidate (1) with heterocyclic aldehydes (2a-j) and dialkyl phosphites at 60-70 degrees C in the presence of tetramethylguanidine. The tetramethylguanidine not only catalyses this reaction but also helps to form pure products in high yields in lesser time. They exhibited good