Hydrophosphonylation of alkenes or nitriles by double radical transfer mediated by titanocene/propylene oxide
作者:Camille Midrier、Mathias Lantsoght、Jean-Noël Volle、Jean-Luc Pirat、David Virieux、Christian V. Stevens
DOI:10.1016/j.tetlet.2011.09.096
日期:2011.12
Hydrophosphonylation reactions have emerged as efficient processes for the functionalization of alkenes or alkynes. Synthesis of alkylphosphonates was achieved by an original double radical transfer mediated by titanocene and propylene oxide. By the same way, nitriles which are considered as inert functions in radical process lead to aminobisphosphonates. (C) 2011 Elsevier Ltd. All rights reserved.
ZnCl<sub>2</sub>-Mediated Double Addition of Dialkylphosphite to Nitriles for the Synthesis of 1-Aminobisphosphonates
In this study, the double addition of dialkylphosphite to nitriles in a ZnCl2/Et3N system is described. The reaction was conveniently and directly used for the synthesis of biologically important 1-aminobisphosphonates (ABPs) from nitriles. The one-pot synthesis of 1-aminobisphosphonates from aldehydes via the in situ generation of nitriles is also described.