99706-39-5Relevant academic research and scientific papers
1,3-CARBANIONISCHE UMLAGERUNGEN SYNTHESE VON BIS(o-HYDROXYARYL)-PHOSPHORVERBINDUNGEN
Heinicke, J.,Kadyrov, R.,Kellner, K.,Nietzschmann, E.,Tzschach, A.
, p. 209 - 216 (2007/10/02)
Phosphonic acid bis(o-haloarylesters) as well as the corresponding phosphoric acid derivatives are reacted with sodium giving bis(o-hydroxyaryl)phosphinoxides and phosphonic acid esters or amides, resp.The primery metallation products undergo rapid 1,3-ca
Metalation-Induced Double Migration of Phosphorus from O-->C. Convenient Preparation of Bis(2-hydroxyaryl)phosphinic Acids
Dhawan, Balram,Redmore, Derek
, p. 179 - 183 (2007/10/02)
Treatment of diaryl ethyl phosphates 8 with lithium diisopropylamide in tetrahydrofuran yields ethyl bis(2-hydroxyaryl)phosphinates 9.The reaction involves the double migration of phophorus from O-->C and is probably intramolecular.These phosphinate esters 9 on treatment with trimethylsilyl chloride and sodium iodide in acetonitrile undergo transesterification to give trimethylsilyl esters that yield the corresponding phosphinic acids 15 on treatment with water.
