The first synthesis of ferrocenyl aminophosphonic esters

The series of aminophosphonates bearing the ferrocenyl moiety was obtained by the addition of dialkyl phosphites to an azomethine bond of Schiff bases. Some successful attempts to perform the asymmetrical synthesis of aminophosphonates were made, but the isolation of diastereomers failed. (C) 2001 Elsevier Science B.V. All rights reserved.