39078-30-3Relevant academic research and scientific papers
Reactions of nitroxides, part XI: O-Aryl phenylselenophosphonates bearing a nitroxyl moiety
Huras, Bogumila,Zakrzewski, Jerzy,Krawczyk, Maria
experimental part, p. 137 - 147 (2011/10/08)
O-Aryl phenylselenophosphonates bearing a nitroxyl moiety were synthesized in the presence of pyridine in diethyl ether from 4-hydroxy-2,2,6,6- tetramethylpiperidine-1-oxyl, and either phenyldichlorophosphine and elemental selenium in 9-35% yield or phenyldichlorophosphine selenide in 36-62% yield. O,O-Diaryl phenylselenophosphonates and O,O-bis(2,2,6,6-tetramethyl-1-oxyl-4- piperidyl)phenylselenophosphonates were obtained as by-products. O,O-Diaryl phenylselenophosphonates were obtained from phenyldichlorophosphine selenide and 2 mol of phenols in 55-86% yield. Antifungal activity of some synthesized selenophosphonates was found.
A new synthesis of (PhPSe2)2 (woollins reagent) and its use in the synthesis of novel P-Se heterocycles
Gray, Ian P.,Bhattacharyya, Pravat,Slawin, Alexandra M. Z.,Woollins, J. Derek
, p. 6221 - 6227 (2007/10/03)
A new and improved method for the preparation of (PhPSe2) 2 (Woollins reagent (WR), 1) is reported. Reaction of dichlorophenylphosphine with Na2Se, (prepared from the reaction of elemental selenium and sodium in liquid ammonia) gives WR with excellent purity, high yield and on a larger scale than was previously possible. Four novel phosphorus-selenium heterocycles, including a spirocyclic heterocycle exhibiting a four-membered P2SeC ring, were obtained from the reaction of WR with two reactive substrates (diphenylcyclopropenone and methyl phenylpropiolate). Useful selenocarbonyl and thiocarbonyl compounds were obtained from the reaction of both WR and Lawesson's reagent with diphenylcyclopropenone. All new compounds were characterised spectroscopically and three demonstrative X-ray structures are reported.
Oxygen-Selenium Exchange using Phenylselenophosphonic Dichloride : Conversion of C=O into C=Se
Michael, Joseph P.,Reid, David H.,Rose, Beate G.,Speirs, Richard A.
, p. 1494 - 1496 (2007/10/02)
Phenylselenophosphonic dichloride brings about preparatively useful oxygen-selenium exchange reactions in conjugated carbonyl and masked carbonyl compounds, thus enabling tertiary selenoamides, indolizine-3-selenoaldehydes, 1,2-dithiol-3-selones, 1,6aλsu
