Category: 3411-48-1

Computed Properties of C30H21P. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: Tri(naphthalen-1-yl)phosphine, is researched, Molecular C30H21P, CAS is 3411-48-1, about Regioselective hydroformylation of vinyl acetate catalyzed by rhodium complex of naphthyl-based monodentate bulky phosphine and phosphite ligands. Author is Dabbawala, Aasif A.; Bajaj, Hari C.; Rao, Ganga V. S.; Abdi, Sayed H. R..

The hydroformylation of vinyl acetate was carried out using rhodium complex of naphthyl-based monodentate bulky phosphine and phosphite ligands. All the naphthyl-based ligands favored the formation of desire branched aldehyde. High turnover frequency with excellent regioselectivity to branched aldehyde and high selectivity to aldehyde were observed with bulky phosphite ligands. The effect of partial pressure of CO and H2, concentration of vinyl acetate, stirring rate and solvents on the hydroformylation of vinyl acetate catalyzed by Rh/bulky phosphite were examined precisely in order to improve the catalytic activity and selectivity. In contrast to conventional organic solvents, the significant influence on the activity and selectivity was observed in organic carbonates ( green’ solvent) particularly in propylene carbonate (PC). The PC/catalyst system could be recycled without significant loss of activity and selectivity.

There is still a lot of research devoted to this compound(SMILES：C1=CC2=C(C=C1)C(=CC=C2)P(C1=CC=CC2=C1C=CC=C2)C1=CC=CC2=C1C=CC=C2)Computed Properties of C30H21P, and with the development of science, more effects of this compound(3411-48-1) can be discovered.

Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

Gerritsen, L. A.; Klut, W.; Vreugdenhil, M. H.; Scholten, J. J. F. published an article about the compound: Tri(naphthalen-1-yl)phosphine( cas:3411-48-1,SMILESS:C1=CC2=C(C=C1)C(=CC=C2)P(C1=CC=CC2=C1C=CC=C2)C1=CC=CC2=C1C=CC=C2 ).Recommanded Product: 3411-48-1. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:3411-48-1) through the article.

The heterogeneous catalytic hydroformylation of propylene is carried out at 90-199° and 1.57 MPa total pressure over a supported liquid phase Rh catalyst. Tri-p-tolylphosphine, tris(2-cyanoethyl)phosphine and S-(+)-(2-phenylbutyl)diphenylphosphine are attractive solvent ligands, since they provide the catalysts with excellent stability and selectivity, and satisfactory activity. The volatility of these ligands is low; the supported liquid phase rhodium catalysts can thus be applied at temperatures up to ∼140°, without severe loss of phosphine by evaporation Above 150° deactivation of the catalysts is observed; this is thought to be due to metalation of the coordinated ligands by the Rh metal.

If you want to learn more about this compound(Tri(naphthalen-1-yl)phosphine)Recommanded Product: 3411-48-1, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(3411-48-1).

Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: Tri(naphthalen-1-yl)phosphine, is researched, Molecular C30H21P, CAS is 3411-48-1, about Reaction of 1-bromonaphthalene with PH3 in the t-BuOK/DMSO system: PCl3-free synthesis of di(1-naphthyl)phosphine and its oxide.Formula: C30H21P.

The phosphine, generated together with hydrogen from red phosphorus and aqueous KOH, reacts with 1-bromonaphthalene in the t-BuOK/DMSO system under mild conditions (70 °C, atm. pressure) to give di(1-naphthyl)phosphine, which is easily oxidized in the presence of air to afford di(1-naphthyl)phosphine oxide in 45% preparative yield. Tri(1-naphthyl)phosphine and naphthalene are also formed in the reaction in 23 and 27% yield, resp. According to ESR and UV data, the studied phosphination of 1-bromonaphthalene involves a single electron transfer process.

If you want to learn more about this compound(Tri(naphthalen-1-yl)phosphine)Formula: C30H21P, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(3411-48-1).

Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: Tri(naphthalen-1-yl)phosphine, is researched, Molecular C30H21P, CAS is 3411-48-1, about Highly active, stable, catalysts for the Heck reaction; further suggestions on the mechanism.Category: chiral-nitrogen-ligands.

Tri(1-naphthyl)phosphine gives palladacycles which are very active catalysts for Heck reactions; mechanisms based on a PdII-PdIV cycle are proposed and a new, very efficient method of separating the product from the catalyst has been devised, which involves treatment with cyanide ion.

If you want to learn more about this compound(Tri(naphthalen-1-yl)phosphine)Category: chiral-nitrogen-ligands, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(3411-48-1).

Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Phosphines and phosphine sulfides containing highly condensed aromatic groups》. Authors are Tefteller, Wilburn Jr.; Zingaro, Ralph A.; Isbell, A. F..The article about the compound:Tri(naphthalen-1-yl)phosphinecas:3411-48-1,SMILESS:C1=CC2=C(C=C1)C(=CC=C2)P(C1=CC=CC2=C1C=CC=C2)C1=CC=CC2=C1C=CC=C2).Synthetic Route of C30H21P. Through the article, more information about this compound (cas:3411-48-1) is conveyed.

The preparation and properties of 4 new phosphines and 6 new phosphine sulfides are reported. Preparation of the phosphines is accomplished by condensation of a P trihalide, or substituted halide with the aryllithium compound in an inert atm. The sulfides are prepared by refluxing the phosphine with S in an appropriate solvent. The phosphines and sulfides are colorless solids.

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Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Steric hindrance in the addition of halogens to triaryl phosphites》. Authors are Anschutz, Ludwig; Kraft, Horst; Schmidt, Kurt.The article about the compound:Tri(naphthalen-1-yl)phosphinecas:3411-48-1,SMILESS:C1=CC2=C(C=C1)C(=CC=C2)P(C1=CC=CC2=C1C=CC=C2)C1=CC=CC2=C1C=CC=C2).Related Products of 3411-48-1. Through the article, more information about this compound (cas:3411-48-1) is conveyed.

2,4,1-Br2C10H5OH (20 g.) and 3 g. of PCl3, heated 18 hrs. on the water bath and the product taken up in 100 cc. xylene at 100°, give about 20% of tri(2,4-dibromo-1-naphthyl)phosphite (I), m. 289°; a suspension in CCl4 does not add Cl or Br (in 48 hrs.). The 1,6,2-isomer of I, crystallized from CCl4-Et2O, m. 245° (15% yield); this also does not add Cl or Br. 1,6,2-Br2C10H5OH and PCl5, heated 6 hrs. at 140-50°, give a yellow-brown smear which loses HCl in the air; that this is tri(1,6-dibromo-2-naphthyl) phosphite dichloride follows from the reaction with boiling H2O for several hrs., which yields the phosphate, m. 200-1° (decomposition). 1-C10H7OH (22 g.) and 7 g. PCl3, heated 12 hrs. at 75-100°, give 45-50% of tri(1-naphthyl)phosphite (II), very hygroscopic, m. 91° (crystallized from xylene and washed with Et2O); in Et2O it absorbs Cl (2 hrs.) to give the dichloride, light green very hygroscopic liquid, purified by treatment with C6H6 and Et2O; hydrolysis gives the phosphate, m. 145°; dibromide, ruby-red, very hygroscopic oil. The 2-isomer of II m. 94° (crystallized from xylene and Et2O); dichloride, yellow oil, hydrolyzed to the phosphate, m. 110-11°; dibromide, brownish red oil. 1-C10H7MgBr and PCl3 in Et2O give 30-5% of tri(1-naphthyl)phosphine (III), m. 282° (from dioxane); it forms a complex with 1 mol. CHCl3, m. 262° (lost on heating in vacuo at 98°) and with 1 mol. of CCl4. The dichloride of III has been obtained only as the complex with 1 mol. of CHCl3, m. 160° (decomposition), and with 1 mol. of CCl4, each of which is only slightly hygroscopic; hydrolysis with dilute NaOH gives tri(1-naphthyl)phosphine oxide hydrate, which yields the oxide, m. 341-3°, on heating. The dibromide of III is prepared by passing CHCl3-Br over the surface of III; it is reddish, only slightly hygroscopic and does not form complexes with CHCl3 or CCl4. Anthrol and PCl3, heated 5-8 hrs. at 100-10°, give 10% of tri(1-anthranyl)phosphite, greenish yellow, hygroscopic, decomposes 182-90°; 5% H2SO4 (boiling 0.5 hr.) gives anthrone; it does not add Cl or Br but a portion is hydrolyzed and oxidized; the products isolated include 10,10-dichloroanthrone, 10-bromoanthrone, anthraquinone and 1- and 3-bromoanthraquinone; H3PO3 is also formed, but no phosphates or H3PO4. Tri(9-anthranyl) phosphine could not be prepared The color of the fluorescence of these compounds in ultraviolet light is given. The results indicate that the retardation of the reaction is less dependent on the electroneg. character of the o-Br atom than on the space relations of the aromatic residue.

Here is a brief introduction to this compound(3411-48-1)Related Products of 3411-48-1, if you want to know about other compounds related to this compound(3411-48-1), you can read my other articles.

Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis