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.Name: Pentaerythrityltetrabromide.Rustad, Steinar; Stoelevik, Reidar published the article 《Conformational analysis. XI. The molecular structure, torsional oscillations, and conformational equilibria of gaseous tetrakis(bromomethyl)methane, C(CH2Br)4, as determined by electron diffraction and compared with molecular-mechanics calculations》 about this compound( cas:3229-00-3 ) in Acta Chemica Scandinavica, Series A: Physical and Inorganic Chemistry. Keywords: bromomethylpropane gas mol structure vibration; propane bromomethyl gas mol structure. Let’s learn more about this compound (cas:3229-00-3).

Gaseous C(CH2Br)4 was studied by electron diffraction. Two conformers named D (D2d symmetry) and S (S4 symmetry) were detected. The results are presented with error limits (2σ). The following values for distances (rg) and angles (∠α) are appropriate for the structure of both conformers: r(C-H) = 1.09(5) Å, r(C-C) = 1.554(9) Å, r(C-Br) = 1.951(8) Å, ∠CCBr = 114.2.degree.(0.8), ∠CCH = 111.7.degree.(3.2). D and S have a tetrahedral arrangement of C atoms and all-staggered (1:2) conformations which do not possess parallel (1:3) Br···Br interactions. Torsional force constants and vibrational frequencies for both conformers were estimated The composition at 140° is 42(2) % of S and 58(2) % of D. As predicted by the mol.-mechanics calculations, conformers possessing parallel (1:3) Br···Br interactions are not present in detectable amounts To a large extent the structural parameters obtained by the mol.-mechanics calculations reasonably agree with the exptl. results.

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

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 3229-00-3, is researched, SMILESS is BrCC(CBr)(CBr)CBr, Molecular C5H8Br4Journal, Chemical Research in Chinese Universities called Molecular chirality and chiral superlattice in crystal of tetrakis[(pyrrol-1-yl)methyl]methane, Author is Wei, Xu; Lu, Yin-xiang; Liu, Chun-ming; Lan, Bi-jian; Hui, Zhou; Wang, Jing-mei, the main research direction is mol structure chirality pyrrolylmethylmethane; crystal structure pyrrolylmethylmethane.Application In Synthesis of Pentaerythrityltetrabromide.

The crystal structure of tetrakis[(pyrrol-1-yl)methyl]methane was determined by x-ray diffraction measurement, and it belongs to monoclinic crystal system, space group P21/n; with a 0.9284(3), b 1.0950(6), c 1.8749(8) nm; β 103.63(3)°, Z = 4, dc = 1.192 kg/m3, R1 = 0.0854, wR2 = 0.1884. The mols. exist in two enantiomeric states. Enantioselective self-assemblies such as 1-dimensional mol. stacks in a single handedness, homochiral monolayers and a chiral superlattice are specified in this racemic crystal. A simple technique is advocated to distinguish chiral states from tetrahedral mols. in the solid state. The present R/S nomenclature of the tetracooradinated C centers was used solely for its convenience to distinguish the two enantiomeric states, but not used to determine the absolute configurations.

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

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called The improved synthesis and characterization of 2,2-dihalogenated methyl-1,3-dihalogenated propane, published in 2011-01-25, which mentions a compound: 3229-00-3, mainly applied to halogenation methyl propane synthesis, Recommanded Product: Pentaerythrityltetrabromide.

Pentaerythritol as raw material reacts with the thionyl chloride (SOCl2) and phosphorus tribromide (PBr3) resp. to prepare 2,2-di(chloromethyl)-1,3-dichloropropane (pentaerythrityl chloride), and 2,2-di(bromomethyl)-1,3-dibromopropane (pentaerythrityl bromide). The structures of the target products were characterized through IR and 1H NMR, and the effects of material ratio on the yield of pentaerythrityl chloride and pentaerythrityl bromide were discussed. The yield of pentaerythrityl chloride and pentaerythrityl bromide were 80.53% and 84.16% resp.

The article 《The improved synthesis and characterization of 2,2-dihalogenated methyl-1,3-dihalogenated propane》 also mentions many details about this compound(3229-00-3)Recommanded Product: Pentaerythrityltetrabromide, you can pay attention to it, because details determine success or failure

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: Pentaerythrityltetrabromide, is researched, Molecular C5H8Br4, CAS is 3229-00-3, about Synthesis and crystal structure of an octahedral nickel(II) complex derived from pentaerythrityltetraamine, the main research direction is crystal structure nickel pentaerythrityltetraamine complex; electrooxidation nickel pentaerythrityltetraamine complex; oxidation nickel pentaerythrityltetraamine complex.Name: Pentaerythrityltetrabromide.

Ni(Htam)24+ (tam = pentaerythrityltetraamine) was prepared under controlled conditions. In this ion, 3 of the 4 amino groups of each ligand are coordinated to yield an octahedral structure which shows tetragonal and trigonal distortion. The 4th amino group is protonated in each case and binds strongly to the counter ion SO42-. The crystal structure (triclinic, P1̅, a 8.913(3), b 9.775(2), c 7.505(3) Å, α 102.61(4), β 106.28(4), γ 96.40(3)°) was refined, converging to R = 0.0347 and Rw = 0.0386. The 3-dimensional nature of the H bonding in the crystal structure was described. Differences in Ni-N bond lengths are observed A transient Ni(III) species is generated chem. or electrochem. The ESR spectrum is consistent with a low spin d7 center and is axial in nature.

After consulting a lot of data, we found that this compound(3229-00-3)Name: Pentaerythrityltetrabromide can be used in many types of reactions. And in most cases, this compound has more advantages.

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

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.Synthetic Route of C5H8Br4.Xu, Wei; Lu, Yin Xiang; Guo, Peng; Zhou, Hui; Lan, Bi Jian published the article 《Tetrakis[(4-phenylpiperazin-1-yl)methyl]methane》 about this compound( cas:3229-00-3 ) in Acta Crystallographica, Section E: Structure Reports Online. Keywords: mol structure phenylpiperazinylmethyl methane; crystal structure phenylpiperazinylmethyl methane. Let’s learn more about this compound (cas:3229-00-3).

The title compound, C45H60N8, is a sym. mol. with four chem. identical substituents bonded to a central C atom. In the crystal structure, the 4-phenylpiperazin-1-yl groups exhibit four different conformations, with no obvious pseudosymmetry. Crystallog. data are given.

After consulting a lot of data, we found that this compound(3229-00-3)Synthetic Route of C5H8Br4 can be used in many types of reactions. And in most cases, this compound has more advantages.

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 《Products of reaction between trimethylamine and pentaerythrityl tetrahalides》. Authors are D’Amico, A.; Verga, G..The article about the compound:Pentaerythrityltetrabromidecas:3229-00-3,SMILESS:BrCC(CBr)(CBr)CBr).Formula: C5H8Br4. Through the article, more information about this compound (cas:3229-00-3) is conveyed.

When 0.02 mole C(CH2Br4) and 0.33 mole Me3N or multiples thereof was heated with cyclohexane in an autoclave 6 hrs. at 190°, among the reaction products only Me4NBr was isolated. An analogous result was obtained with the tetraiodide. Some steric impediment to the formation of C(CH2NHMe.MeI)4 was observed.

Although many compounds look similar to this compound(3229-00-3)Formula: C5H8Br4, numerous studies have shown that this compound(SMILES:BrCC(CBr)(CBr)CBr), has unique advantages. If you want to know more about similar compounds, you can read my other articles.

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Recommanded Product: 3229-00-3. 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: Pentaerythrityltetrabromide, is researched, Molecular C5H8Br4, CAS is 3229-00-3, about Synthesis of star polymethyl acrylate by SET-LRP at ambient temperature. Author is Ding, Wei; Lv, Chongfu; Sun, Ying; Luan, Huoxin; Yu, Tao; Qu, Guangmiao.

The star-shaped polymethyl acrylate (PMA) was synthesized by single electron transfer living radical polymerization (SET-LRP) at 30° in DMSO, using 2,2-dibromomethyl-1,3-dibromopropane as the multi-functional initiator, Cu0 powder and tris-(2-dimethylamino ethyl)amine (Me6-TREN) as catalyst. The structure of polymer was analyzed by 1H NMR, and the results showed that the star-shaped PMA had perfect chain ends (-Br) retention. In addition, the polymerization proceeded smoothly and the time dependence of ln([M]0/[M]) was linear, which could indicate a first order propagation rate with respect to both radicals and monomer concentration, the polymerization was the living polymerization The Mn and Mw/Mn of polymer were being measured by Gel Permeation Chromatog. The kpapp = 0.0367 h-1 and the conversion was 36.3% at 16 h, meanwhile the MnGPC of the polymer was 13,300 and the Mw/Mn was 1.40.

Although many compounds look similar to this compound(3229-00-3)Recommanded Product: 3229-00-3, numerous studies have shown that this compound(SMILES:BrCC(CBr)(CBr)CBr), has unique advantages. If you want to know more about similar compounds, you can read my other articles.

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 《Heat capacities and thermodynamic properties of globular molecules. IV. Pentaerythrityl chloride, bromide, and iodide from 6 to 3O0°K》. Authors are Payne, Donald H.; Westrum, Edgar F. Jr..The article about the compound:Pentaerythrityltetrabromidecas:3229-00-3,SMILESS:BrCC(CBr)(CBr)CBr).Recommanded Product: 3229-00-3. Through the article, more information about this compound (cas:3229-00-3) is conveyed.

cf. CA 56, 12379a. The heat capacities of the title compounds were determined by adiabatic calorimetry from 6 to 300°K., and the entropies, enthalpies, and free-energy functions evaluated. The entropies at 298.15°K. are 61.54, 69.58, and 75.70 cal./mole °K. for the chloride, bromide, and iodide, resp. Although the general temperature dependences of the heat capacities are of the usual sigmoid character, the chloride and the bromide both show a region of anomalously slow absorption of energy.

Although many compounds look similar to this compound(3229-00-3)Recommanded Product: 3229-00-3, numerous studies have shown that this compound(SMILES:BrCC(CBr)(CBr)CBr), has unique advantages. If you want to know more about similar compounds, you can read my other articles.

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Recommanded Product: Pentaerythrityltetrabromide. 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: Pentaerythrityltetrabromide, is researched, Molecular C5H8Br4, CAS is 3229-00-3, about A high-efficiency method for the synthesis of N, N1, N2, N3-tetra(p-toluenesulphonyl) pentaerythrityl tetramine. Author is Liu, Shengbo; Liu, Jinjie.

A high-efficiency method for the synthesis of N, N1, N2, N3-tetra(p-toluenesulfonyl) pentaerythrityl tetramine is presented. And this method comprises fully grinding and mixing pentaerythrityl tetrabromide and excess p-toluenesulfonamide (excess amount 15%); placing into reactor; sealing the reactor, placing the reactor into bake oven, reacting at 210°C for 6-8 h. The yield is over 95%.

After consulting a lot of data, we found that this compound(3229-00-3)Recommanded Product: Pentaerythrityltetrabromide can be used in many types of reactions. And in most cases, this compound has more advantages.

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Name: 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 A dynamic NMR study of sulphur inversion in transition metal complexes of 2,6-dithiaspiro[3.3]heptane (2,6-DTSH), 2,6-DTSH-2-oxide and 2,6-DTSH-2,2-dioxide. Author is Abel, Edward W.; Orrell, Keith G.; Poole, Mark C.; Sik, Vladimir.

The following complexes were synthesized [W(CO)5L1], [{W(CO)5}2L1], [W(CO)5L2], [W(CO)5L3], [{PdCl2(PPh3)}2L1], [PdCl2(PPh3)L2] and [PdCl2(PPh3)L3] where L1 = 2,6-dithiaspiro[3.3]heptane (2,6-DTSH), L2 = 2,6-DTSH-2-oxide and L3 = 2,6-DTSH-2,2′-dioxide. In solution these complexes exhibit pyramidal inversion of the metal-coordinated sulfur atom(s), rates and activation energies of which were evaluated by total NMR bandshape anal. ΔG⧧ values were in the range 45-50 kJ mol-1. These magnitudes are discussed in terms of ring geometry distortions and sulfur lone pair interactions.

After consulting a lot of data, we found that this compound(3229-00-3)Name: Pentaerythrityltetrabromide can be used in many types of reactions. And in most cases, this compound has more advantages.

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem