Category: 3229-00-3

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: Pentaerythrityltetrabromide( cas:3229-00-3 ) is researched.Reference of Pentaerythrityltetrabromide.Dikarev, Evgeny V.; Shpanchenko, Roman V.; Andreini, Kristian W.; Block, Eric; Jin, Jin; Petrukhina, Marina A. published the article 《Powder Diffraction Study of a Coordination Polymer Comprised of Rigid Building Blocks: [Rh2(O2CCH3)4·μ2-Se2C5H8-Se,Se’]∞》 about this compound( cas:3229-00-3 ) in Inorganic Chemistry. Keywords: rhodium acetate diselenaspiroheptane polymeric complex preparation structure; diselenaspiroheptane preparation structure complexation rhodium acetate; crystal structure rhodium acetate diselenaspiroheptane polymeric complex. Let’s learn more about this compound (cas:3229-00-3).

The crystal structure of a new hybrid product comprised of two rigid building blocks, dirhodium(II) tetraacetate, [Rh2(O2CCH3)4] (1), and 2,6-diselenaspiro[3.3]heptane, Se2C5H8 (2), was solved ab initio using laboratory source x-ray powder diffraction (XRPD) data. The rigid body refinement approach was applied to assist in finding an adequate model and to reduce the number of the refined parameters. [Rh2(O2CCH3)4·μ2-Se2C5H8-Se,Se’] (3) conforms to the triclinic space group P1̅, with a 8.1357(4), b 8.7736(4), and c 15.2183(8) Å, α 77.417(3), β 88.837(3), and γ 69.276(4)°, V = 989.66(8) Å3, and Z = 2. The final values of the reduced wRp, Rp, and χ2 were calculated at 0.0579, 0.0433, and 5.95, resp. The structure of 3 is a 1-dimensional zigzag polymer built on axial Rh···Se interactions at 2.632(6) Å. The 2,6-diselenaspiro[3.3]heptane ligand acts as a bidentate linker bridging dirhodium units via both Se atoms. The geometrical parameters of individual groups for rigid body refinement were obtained from x-ray powder data for 1 and from single-crystal x-ray diffraction for diselenium mol. 2. The crystal structures of 1 and 2 are reported here for the 1st time. For 1 indexing based on XRPD data resulted in the triclinic unit cell space group P1̅ with a 8.3392(7), b 5.2216(5), and c 7.5264(6) Å, α 95.547(10), β 78.101(6), and γ 104.714(13)°, and Z = 1. The final values were wRp = 0.0452, Rp = 0.0340, and χ2 = 1.99. The 1-dimensional polymeric motif built on axial Rh···O interactions of the centrosym. dirhodium units was confirmed for the solid-state structure of 1. Compound 2,6-diselenaspiro[3.3]heptane (2) conforms to the monoclinic space group P21/c with the unit cell parameters of a 5.9123(4), b 19.6400(13), and c 5.8877(4) Å, β 108.5500(10)°, and Z = 4.

This compound(Pentaerythrityltetrabromide)Reference of Pentaerythrityltetrabromide was discussed at the molecular level, the effects of temperature and reaction time on the properties of the compound were discussed, and the optimum reaction conditions were selected.

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Pentaerythrityl tetrabromide》. Authors are Herzog, Hershel L..The article about the compound:Pentaerythrityltetrabromidecas:3229-00-3,SMILESS:BrCC(CBr)(CBr)CBr).Reference of Pentaerythrityltetrabromide. Through the article, more information about this compound (cas:3229-00-3) is conveyed.

C(CH2OH)4 (130 g.) in 650 ml. C5H5N, treated (2 hrs.) with 750 g. PhSO2Cl (temperature 30-5°), the resulting slurry stirred 1 hr. at 40°, added slowly to 800 ml. concentrated HCl in 1 l. H2O and 2 l. MeOH, the crude C(CH2OSO2Ph)4 in 1 l. (HOCH2CH2)2O treated with 600 g. NaBr, and heated overnight at 140-50°, gives 68-78% C(CH2Br)4.

《Pentaerythrityl tetrabromide》 provides a strategy for the preparation of materials with excellent comprehensive properties, which is conducive to broaden the application field of this compound(Pentaerythrityltetrabromide)Reference of Pentaerythrityltetrabromide.

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Raman-spectral analytical investigation of the hydrocarbons obtained on debromination of tetrabromopentaerythritol》. Authors are Goubeau, Josef; Sander, Irmgard.The article about the compound:Pentaerythrityltetrabromidecas:3229-00-3,SMILESS:BrCC(CBr)(CBr)CBr).Application of 3229-00-3. Through the article, more information about this compound (cas:3229-00-3) is conveyed.

The hydrocarbon mixture (I) obtained on debromination of tetrabromopentaerythritol according to Philipow (C.A. 11, 1632) is separated into 3 fractions, which are analyzed by Raman-spectral analysis. Fraction 1, b. 29.5-32°, consists of 70% CH2:CMeEt (II), 20% spiropentane (III), and 10% methylenecyclobutane (IV); fraction 2 of 10% II, 50% III, and 40% IV; fraction 3 of 5% III and 95% IV. The Raman spectrum of II has the following frequencies: 221 (0), 256 (1), 285 (1), 400 (4), 433 (3), 495 (2), 532 (2), 586 (2), 658 (2), 707 (2), 774 (9), 792 (2), 889 (3), 936 (1), 957 (5), 1014 (3), 1033 (6), 1083 (5), 1244 (1), 1286 (1), 1393 (3), 1415 (5), 1434 (5), 1459 (3), 1654 (9), 2882 (5), 2897 (5), 2919 (5), 2940 (5), 2971 (3), 2993 (7), 3074 (3); III: 305 (0), 433 (0), 580 (2), 613 (0), 779 (0), 798 (0), 873 (6), 1032 (7), 1150 (0), 1392 (2), 1426 (2), 2836 (0), 2881 (00), 2988 (4), 3066 (3); IV: 354 (6), 374 (6), 658 (7), 718 (0), 794 (0), 873 (3), 909 (5), 955 (10), 1195 (9), 1393 (6), 1425 (6), 1678 (9), 2832 (2), 2859 (1), 2901 (8), 2922 (9), 2955 (7), 2987 (9), 3073 (2) (cf. Cleveland, et al., C.A. 42, 459c; Murray and Stevenson, C.A. 38, 1476.9, 3615.1; Slabey, C.A. 40, 5701.3).

《Raman-spectral analytical investigation of the hydrocarbons obtained on debromination of tetrabromopentaerythritol》 provides a strategy for the preparation of materials with excellent comprehensive properties, which is conducive to broaden the application field of this compound(Pentaerythrityltetrabromide)Application of 3229-00-3.

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Application In Synthesis of Pentaerythrityltetrabromide. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: Pentaerythrityltetrabromide, is researched, Molecular C5H8Br4, CAS is 3229-00-3, about Crystal structure of (μ3-bromo)-(μ2-bromo)-[μ2-2,2-bis(bromomethyl)-1,1′-(1,3-propanediyl)bis(2-methylbenzimidazole)-κ2(N:N’)]dicopper(I), Cu2(C21H22Br2N4)Br2. Author is Bai, Hong-Ye; Xia, Dao-Cheng; Ma, Jian-Fang.

The crystal data for newly prepared polymeric Cu2LBr2 (L = 2,2-bis(bromomethyl)-1,1′-(1,3-propanediyl)bis(2-methylbenzimidazole)) are monoclinic, P21/n, a = 29.738(3), b = 10.2118(4), c = 21.417(5) Å, β = 133.185(1)°, Z = 8, 3084 observed reflections with I > 2σ(I), 275 refined parameters, Rgt(F) = 0.033, wRref(F2) = 0.059.

Different reactions of this compound(Pentaerythrityltetrabromide)Application In Synthesis of Pentaerythrityltetrabromide require different conditions, so the reaction conditions are very important.

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Product Details of 3229-00-3. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: Pentaerythrityltetrabromide, is researched, Molecular C5H8Br4, CAS is 3229-00-3, about The effect of the carbon-bromine bond type on the fire retardation of unsaturated polyester. Author is Ravey, M.; Fischler, T.; Kramer, M..

Up to a concentration of 20 phr of Br in brominated hydrocarbon fire retardants, the Limiting O Index values were linearly related to the Br concentration and independent of the type of C-Br bond. The results show that if HBr is the active fire retarder, it does not necessarily have to be produced by dehydrobromination of the retardant, nor does the retardant effectiveness appear to be related to its HBr release potential.

Different reactions of this compound(Pentaerythrityltetrabromide)Product Details of 3229-00-3 require different conditions, so the reaction conditions are very important.

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: Pentaerythrityltetrabromide(SMILESS: BrCC(CBr)(CBr)CBr,cas:3229-00-3) is researched.Safety of Tricyclohexylphosphonium tetrafluoroborate. The article 《Controlled-potential electrolytic reduction: 1,1-bis(bromomethyl)cyclopropane》 in relation to this compound, is published in Organic Syntheses. Let’s take a look at the latest research on this compound (cas:3229-00-3).

This method illustrates a general procedure for the preparation of cyclopropane and cyclobutane derivatives by the electrolytic reduction of 1,3- and 1,4-dihalides. It is clearly superior to the reductive cyclizations of dihalides effected with metals or with Cr(II) salts. This method gives the best results when dibromides rather than dichlorides are used as starting materials and when an aprotic solvent such as DMF or MeCN is used.

Different reactions of this compound(Pentaerythrityltetrabromide)Computed Properties of C5H8Br4 require different conditions, so the reaction conditions are very important.

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Venkatraman, B. Harihara; Chaudhuri, PiyaliD.; Yurt, Serkan; Venkataraman, D. published an article about the compound: Pentaerythrityltetrabromide( cas:3229-00-3,SMILESS:BrCC(CBr)(CBr)CBr ).Synthetic Route of C5H8Br4. 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:3229-00-3) through the article.

In this paper, we show a common strategy to synthesize tetraalkenylmethanes, a cross-linker series for building three-dimensional hydrocarbon networks. To demonstrate the feasibility of this method, we have synthesized tetrapentenylmethane. Attempts to synthesize this cross-linker from pentaerythrityl tetrabromide using substitution reactions resulted in the formation of a spiro compound due to intramol. cyclization. We also show that the difficulty in reactions at the neopentyl carbon site is due to the neopentyl carbanion stability, not the sterics.

Different reactions of this compound(Pentaerythrityltetrabromide)Synthetic Route of C5H8Br4 require different conditions, so the reaction conditions are very important.

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: Pentaerythrityltetrabromide(SMILESS: BrCC(CBr)(CBr)CBr,cas:3229-00-3) is researched.Computed Properties of C9H11Cu. The article 《Metalation Triggers Single Crystalline Order in a Porous Solid》 in relation to this compound, is published in Journal of the American Chemical Society. Let’s take a look at the latest research on this compound (cas:3229-00-3).

The authors report the dramatic triggering of structural order in a Zr(IV)-based metal-organic framework (MOF) through docking of HgCl2 guests. Although as-made crystals were unsuitable for single crystal x-ray diffraction (SCXRD), with diffraction limited to low angles well below at. resolution due to intrinsic structural disorder, permeation of HgCl2 not only leaves the crystals intact but also resulted in fully resolved backbone as well as thioether side groups. The crystal structure revealed elaborate HgCl2-thioether aggregates nested within the host octahedra to form a hierarchical, multifunctional net. The chelating thioether groups also promote Hg(II) removal from H2O, while the trapped Hg(II) can be easily extricated by 2-mercaptoethanol to reactivate the MOF sorbent.

Different reactions of this compound(Pentaerythrityltetrabromide)Recommanded Product: 3229-00-3 require different conditions, so the reaction conditions are very important.

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Recommanded Product: Pentaerythrityltetrabromide. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: Pentaerythrityltetrabromide, is researched, Molecular C5H8Br4, CAS is 3229-00-3, about Poly[[tetrachlorido{μ4-tetrakis[(pyridin-4-yl)oxymethyl]methane-κ4 N:N’:N”:N”’}dizinc(II)] dimethylformamide tetrasolvate]. Author is Wang, Ya-Qin; Xie, Fa-Zhi; Du, Lin.

A novel metal-organic framework, {[Zn2Cl4(C25H24N4O4)].4C3H7NO}n, was synthesized solvothermally by assembling the semi-rigid tetrahedral ligand tetrakis[(pyridin-4-yl)oxymethyl]methane (tpom) and Zn(NO3)3 in DMF. Crystal data: tetragonal, P4̅21c, a = 12.2905(14), c = 16.133(4) Å, Z = 2, 2149 observed reflections with I > 2σ(I), 136 refined parameters, R[F2 > 2σ(F2)] = 0.031, wR(F2) = 0.086. Each Zn(II) cation has a tetrahedral coordination environment (C 2 symmetry), which is formed by 2 chloride ligands and two pyridine N atoms from 2 tpom ligands. The tetrahedral tetradentate tpom linker has a quaternary C atom located on the crystallog. axis. This linker utilizes all the peripheral pyridine N atoms to connect 4 Zn(II) cations, thereby forming a wave-like 2-dimensional sheet along the c axis. The 2D layer can be topol. simplified as a typical uninodal 4-connected sql/Shubnikov net, which is represented by the Schlaefli symbol {44,62}. Adjacent layers are further packed into a 3D structure by C-H…Cl H-bonds.

Different reactions of this compound(Pentaerythrityltetrabromide)Recommanded Product: Pentaerythrityltetrabromide require different conditions, so the reaction conditions are very important.

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Reference of Pentaerythrityltetrabromide. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: Pentaerythrityltetrabromide, is researched, Molecular C5H8Br4, CAS is 3229-00-3, about Tetrakis[(1-phenyltetrazol-5-yl)sulfanylmethyl]methane. Author is Lyakhov, Alexander S.; Zatsepina, Marina V.; Artamonova, Tatiana V.; Gaponik, Pavel N.; Koldobskii, Grigorii I..

Tetrakis[(1-phenyltetrazol-5-yl)sulfanylmethyl]methane, C33H28N16S4, prepared by the divergent method, presents a core unit for further synthesis of tetrazole-containing dendrimers. The central C atom lies on a crystallog. 2-fold rotation axis. π-π Interactions and weak nonclassical C-H···N H bonds are responsible for the formation of layers parallel to the bc plane, with van der Waals interactions between them.

Different reactions of this compound(Pentaerythrityltetrabromide)Reference of Pentaerythrityltetrabromide require different conditions, so the reaction conditions are very important.

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem