67217-31-6Relevant academic research and scientific papers
Me3P-catalyzed addition of hydrogen phosphoryl compounds P(O)H to electron-deficient alkenes: 1 to 1 vs 1 to 2 adducts
Huang, Tian-Zeng,Chen, Tieqiao,Saga, Yuta,Han, Li-Biao
, p. 7085 - 7093 (2017/11/13)
Trimethyl phosphine was used as an efficient catalyst for the addition of P(O)-H compounds to electron-deficient alkenes. The addition reactions were generally conducted using a catalytic amount of Me3P under mild reaction conditions. Both 1 to 1 and 1 to 2 adducts were obtained.
α- and β-diphenylphosphorylated secondary alkanols: I. general method of synthesis and extraction properties towards f-elements
Goryunov,Matveeva,Safiulina,Goryunova,Bodrin,Brel
, p. 629 - 638 (2016/06/01)
A simple and effective general method of synthesis of α- and β-diphenylphosphorylated secondary alkanols by the reduction of the corresponding phosphorylalkanones with NaBH4 was developed. The extraction properties of the resulting phosphorylalkanols Phs
N-heterocyclic carbene catalyzed carba-, sulfa-, and phospha-Michael additions with NHC·CO2 adducts as precatalysts
Hans, Morgan,Delaude, Lionel,Rodriguez, Jean,Coquerel, Yoann
, p. 2758 - 2764 (2014/04/17)
N-heterocyclic carbene catalyzed Michael additions have been revisited with 1,3-dialkyl- or 1,3-diarylimidazol(in)ium-2-carboxylates, that is, NHC·CO2 adducts, as the source of the free NHC catalysts in solution. Using these precatalysts, a number of efficient carba-, sulfa-, and phospha-Michael additions were achieved very conveniently, without the need for an external strong base to generate the NHC by deprotonation of an azolium salt. To further expand the scope of the procedure, some NHC-catalyzed sulfa-Michael/aldol organocascades were also investigated.
New type of 2-alkyl-substituted 1,8-naphthyridine systems containing a phosphoryl group in the side chain
Lemport,Bodrin,Pasechnik,Matveeva,Petrovskii,Vologzhanina,Nifant'Ev
, p. 1911 - 1917 (2008/09/18)
First organophosphorus derivatives of 2-alkyl-and 2,3-alkylene-substituted 1,8-naphthyridines were synthesized by the Friedlaender reaction starting from 2-aminonicotinaldehyde and diphenylphosphoryl(cyclo)alkanones, respectively.
A study on the michael addition of dialkylphosphites to methylvinylketone
Keglevich, Gyoergy,Sipos, Melinda,Takacs, Daniella,Greiner, Istvan
, p. 226 - 229 (2008/02/07)
The addition of dialkylphosphites to methylvinylketone giving dialkyl-3-oxobutyiphosphonates was studied applying different reagents, such as NaOR/ROH, NaOH/H2O under PTC, DBU, and R3Al (R = Me, Et) under different conditions to find
Microwave-assisted regioselective addition of P(O)-H bonds to alkenes without added solvent or catalyst
Stockland Jr., Robert A.,Taylor, Ross I.,Thompson, Laura E.,Patel, Priti B.
, p. 851 - 853 (2007/10/03)
(Chemical Equation Presented) The addition of P(O)-H bonds to alkenes has been accomplished using microwave irradiation in the absence of added solvent and catalyst. In addition to single addition reactions, tandem hydrophosphinylation reactions with alky
Methylenomycin B: New Syntheses Based on β- and γ-Keto Phosphonates and γ-Keto Phosphine Oxides
Mikolajczyk, Marian,Zatorski, Andrzej
, p. 1217 - 1223 (2007/10/02)
Methylenomycin B has been synthesized from diethyl 2-oxobutanephosphonate (4) in three steps in 39 percent overall yield.Starting from diethyl 3-oxobutanephosphonate (10) and diphenyl(3-oxobutyl)phosphine oxide (13), methylenomycin B has been obtained in 34 percent and 27 percent overall yield, respectively.A characteristic feature of these syntheses of methylenomycin B is that the exo-methylene function is introduced via the Horner-Wittig reaction of formaldehyde (36 percent aqueous solution) with the corresponding α-phosphorylcyclopentenones 6 and 20.The latter were obtained from phosphorylated 1,4-diketones by intramolecular base-catalyzed cyclization.A brief discussion of some mechanistic aspects of the Conant reaction is also given.
