7402-93-9Relevant academic research and scientific papers
Synthesis, characterization and properties of titanium phosphonate clusters
Hayami, Ryohei,Sagawa, Takuya,Tsukada, Satoru,Yamamoto, Kazuki,Gunji, Takahiro
, p. 1 - 8 (2018/04/02)
Titanium phosphonate clusters were synthesized by the reactions of titanium tetraisopropoxide (Ti(OiPr)4) with arylphosphonic acids (ArPO3H2, Ar = Ph, 1-Nap, 4-MeOPh, 4-FPh, 4-ClPh, 4-BrPh, and 4-BrBn) and H2O in tetrahydrofuran (THF) at room temperature. [Ti4(μ3-O)(OiPr)5(μ-OiPr)3(O3PAr)3]·solv (Ar = Ph (1), 1-Nap (2), 4-MeOPh (3), 4-FPh (4), 4-ClPh (5); solv = thf for 1 and 2 or 2-propanol for 3–5) were isolated as new Ti4P3-type clusters, while Ti7(μ3-O)2(OiPr)6(μ-OiPr)6(O3PBnBr)6 (6) was isolated as a Ti7P6-type cluster. A co-crystal of Ti4P3- (7a) and Ti7P6-type (7b) clusters were obtained when 4-BrPhPO3H2 was used, and [Ti(OiPr)(acac)(O3PPh)]4 (8), a new cage cluster, was obtained when Ti(acac)2(OiPr)2 (Hacac = acetylacetone) was reacted with PhPO3H2.
The reaction of red phosphorus with 1-bromonaphthalene in the KOH-DMSO system: Synthesis of tri(1-naphthyl)phosphane
Kuimov, Vladimir A.,Malysheva, Svetlana F.,Gusarova, Nina K.,Vakul'Skaya, Tamara I.,Khutsishvili, Spartak S.,Trofimov, Boris A.
experimental part, p. 198 - 203 (2011/10/08)
Red phosphorus reacts with 1-bromonaphthalene in the KOH-DMSO system upon heating (47-70°C, 3 h) to give tri(1-naphthyl)phosphane in 10% yield. Microwave activation (600 W, 6 min) of the reaction affords the above-mentioned phosphane in 25% yield.
Oxidative heck-type reaction involving cleavage of a carbon-phosphorus bond of arylphosphonic acids
Inoue, Atsushi,Shinokubo, Hiroshi,Oshima, Koichiro
, p. 1484 - 1485 (2007/10/03)
Cleavage of a carbon-phosphorus bond is achieved under palladium catalysis in an oxidative Heck-type reaction which exploits arylphosphonic acids. The reaction of arylphosphonic acids with alkenes provides arylation products in good yields in the presence of TBAF with trimethylamine oxide as an oxidant. Copyright
PREPARATION OF ARYLPHOSPHONATES BY THE REACTION OF ARYL HALIDES WITH TRIS(TRIMETHYLSILYL) PHOSPHITE UNDER HOMOGENEOUS CATALYSIS CONDITIONS
Demik, N. N.,Kabachnik, M. M.,Novikova, Z. S.,Beletskaya, I. P.
, p. 1300 - 1301 (2007/10/02)
The reaction of tris(trimethylsilyl) phosphite with aryl bromides under homogeneous catalysis conditions gives bis(trimethylsilyl)arylphosphonates.The desilylation of these phosphonate products with methanol leads to arylphosphonic acids.
