Sigmatropic isomerizations in azaallyl systems: XX. N-Alkylbenzimidoylphosphonates
作者:P. P. Onys’ko、T. V. Kim、Yu. V. Rassukanaya、E. I. Kiseleva、A. D. Sinitsa
DOI:10.1007/s11176-005-0007-6
日期:2004.9
Synthetic approaches are developed to benzimidoylphosphoryl derivatives containing electronically and sterically diverse alkyl substituents on the nitrogen atom, as well as their prototropic isomers. Regularities in prototropic transitions in the phosphorylated C=N-C triad were revealed and applied in the synthesis of α-aminophosphonic acid derivatives.
One-Pot Synthesis of 2-Imidazolines via the Ring Expansion of Imidoyl Chlorides with Aziridines
作者:Michael R. Kuszpit、William D. Wulff、Jetze J. Tepe
DOI:10.1021/jo200101q
日期:2011.4.15
We herein report a simple and convenient one-pot synthesis of highly substituted 2-imidazolines in a regiocontrolled and stereospecific matter through the ringexpansionreaction of an imidoyl chloride with an aziridine, analogous to the Heine reaction.