Facile synthesis of substituted nitrilotriacetamides
作者:Douglas A. Smith、Susan Cramer、Steven Sucheck、Ewa Skrzypczak-Jankun
DOI:10.1016/0040-4039(93)88040-p
日期:1992.12
Ligands which contain multiple amide groups represent interesting possibilities as chelating agents. We report here a facile synthesis and crystal structure of nitrilotriacetamide, 2, a neutral tetradentate ligand which we have been studying for metal complexation. Also described herein is a divergent synthesis of the mono, di- and trimethylated and dimethyl-monoalkyl derivatives of 2.
Solid-phase synthesis of 3-aminohydantoin, dihydrouracil, thiohydantoin and dihydrothiouracil derivatives
作者:Shengde Wu、John M Janusz
DOI:10.1016/s0040-4039(99)02287-x
日期:2000.2
An efficient and convenient route to 3-aminohydantoins and dihydrouracils using solid-phase chemistry has been developed. This methodology has the advantage of generality and diversity over solution-phase chemistry for the preparation of 3-aminohydantoins and dihydrouracils. (C) 2000 Elsevier Science Ltd. All rights reserved.