Tag: M.W:200-300

Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 18583-60-3, is researched, Molecular C9H10BKN6, about New Alkyl Organo Complexes of Ruthenium: X-ray Molecular Structure of a [Hydridotris(pyrazolyl)borato]methylruthenium Complex, [RuTp*(CH3)(cod)] (Tp* = Hydridotris(3,5-dimethylpyrazolyl)borate, cod = 1,5-Cyclooctadiene), Containing an Unusual Three-Center B(μ-H)Ru Bond, the main research direction is crystal structure ruthenium pyrazolylborato cod methyl; mol structure ruthenium pyrazolylborato cod methyl; ruthenium alkyl dipyrazolylmethane pyrazolylborato cod preparation; homoscorpionate ruthenium alkyl pyrazolylborato preparation structure.Name: Potassiumtris(1-pyrazolyl)borohydride.

The reaction of [RuCl2(cod)(bpzm)] (cod = 1,5-cyclooctadiene, bpzm = bis(pyrazol-1-yl)methane) with MeMgCl gives [RuMeCl(cod)(bpzm)]. This complex reacts with AgCF3SO3, affording [RuMe(CF3SO3)(cod)(bpzm)] (3) and AgCl. [RuTpMe(cod)] (4) and [RuTp*Me(cod)] (5) were prepared from the reaction of 3 with KTp (Tp = hydridotris(pyrazolyl)borate) and KTp* (Tp* = hydridotris(3,5-dimethylpyrazolyl)borate), resp. Compound 5 was characterized by x-ray diffraction. The mol. shows unusual coordination of the hydridotris(3,5-dimethylpyrazolyl)borate ligand, where a three-center B(μ-H)Ru bond was found.

From this literature《New Alkyl Organo Complexes of Ruthenium: X-ray Molecular Structure of a [Hydridotris(pyrazolyl)borato]methylruthenium Complex, [RuTp*(CH3)(cod)] (Tp* = Hydridotris(3,5-dimethylpyrazolyl)borate, cod = 1,5-Cyclooctadiene), Containing an Unusual Three-Center B(μ-H)Ru Bond》,we know some information about this compound(18583-60-3)Name: Potassiumtris(1-pyrazolyl)borohydride, but this is not all information, there are many literatures related to this compound(18583-60-3).

Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Canty, Allan J.; Dedieu, Alain; Jin, Hong; Milet, Anne; Richmond, Matthew K. researched the compound: Potassiumtris(1-pyrazolyl)borohydride( cas:18583-60-3 ).SDS of cas: 18583-60-3.They published the article 《Synthesis and Theoretical Studies of a Diorganohydridoplatinum(IV) Complex, PtHMe2{(pz)3BH-N,N’,N”} ([(pz)3BH]- = Tris(pyrazol-1-yl)borate)》 about this compound( cas:18583-60-3 ) in Organometallics. Keywords: platinum methyl hydrido pyrazolylborate complex preparation; SCF MP2 MO imine platinum dimethyl. We’ll tell you more about this compound (cas:18583-60-3).

The platinum(II) tris(pyrazol-1-yl)borate complex [PtMe2{(pz)3BH-N,N’}]- reacts with phenol or aqueous HBF4 in acetone to form the dimethylhydridoplatinum(IV) complex PtHMe2{(pz)3BH-N,N’,N”}. The complex decomposes above ∼140° in toluene-d8 to give methane. Theor. calculations at the SCF and MP2 levels for the species PtXMe2{(H2C:N-NH)3BH-N,N’,N”} (where X = H, OH, Me and the fragment [(H2C:N-NH)3BH]- is a model for [(pz)3BH]-) yield geometries that compare well with structural reports for Pt(OH)Me2{(pz)3BH} and PdMe3{(pz)3BH}.

From this literature《Synthesis and Theoretical Studies of a Diorganohydridoplatinum(IV) Complex, PtHMe2{(pz)3BH-N,N’,N”} ([(pz)3BH]- = Tris(pyrazol-1-yl)borate)》,we know some information about this compound(18583-60-3)SDS of cas: 18583-60-3, but this is not all information, there are many literatures related to this compound(18583-60-3).

Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

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: 2-Bromopriopionaldehydediethylacetal, is researched, Molecular C7H15BrO2, CAS is 3400-55-3, about Reactions of α-bromopropionaldehyde and its diethyl acetal with triethyl phosphite and triphenylphosphine.Safety of 2-Bromopriopionaldehydediethylacetal.

Reactions of MeCHBrCH(OEt)2 (I) with (EtO)3P (II) gave, via MeCBr:CHOEt (III), (EtO)2P(O)CMe:CHOEt, which on hydrolysis yielded (EtO)2P(O)CHMeCHO. Reaction of MeCHBrCHO (IV) with II gave MeCH:CHOP(O)(OEt)2. Heating I with Ph3P in benzene gave Ph3PO and [Ph3P+Et]Br- with III and MeCH:CHCHMeCH(OEt)2 as by-products. III reacted with Ph3P to give [Ph3P+CMe:CHOEt]Br-, hydrolysis of which yielded [Ph3P+CHMeCHO]Br-. IV reacted with Ph3P to give [MeCH:CHOP+Ph3]Br-.

From this literature《Reactions of α-bromopropionaldehyde and its diethyl acetal with triethyl phosphite and triphenylphosphine》,we know some information about this compound(3400-55-3)Safety of 2-Bromopriopionaldehydediethylacetal, but this is not all information, there are many literatures related to this compound(3400-55-3).

Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

Related Products of 16004-15-2. 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: 1-(Bromomethyl)-4-iodobenzene, is researched, Molecular C7H6BrI, CAS is 16004-15-2, about Clustering-Triggered Ultralong Room-Temperature Phosphorescence of Organic Crystals through Halogen-Mediated Molecular Assembly. Author is Sun, Huili; Ding, Riqing; Lv, Shanling; Zhou, Shasha; Guo, Sidan; Qian, Zhaosheng; Feng, Hui.

To achieve efficient room-temperature phosphorescence of organic materials with ultralong lifetime, it is imperative to resolve the dilemma that the introduction of heavy atoms simultaneously improves emission efficiencies and shortens the emission lifetimes. Herein, we report a new mol. design approach for halogenated luminogens with a methylene bridge to avoid the lifetime shortening induced by heavy halogens and propose a general mol. engineering strategy to realize efficient and ultralong room-temperature phosphorescence via halogen-mediated mol. clustering. The halogenated N-benzylcarbazole derivatives show distinct photophys. behaviors depending on different phys. states, including single-mol. state and cluster state. Their crystals demonstrate the halogen-dependent emission duration of room-temperature phosphorescence upon excitation. Exptl. data and theor. anal. indicate that halogen-regulated mol. clustering in the crystal is responsible for the generation of efficient ultralong room-temperature phosphorescence, and halogen-dominated mol. engineering favors the promotion of the intersystem crossing process and the following triplet emissions.

From this literature《Clustering-Triggered Ultralong Room-Temperature Phosphorescence of Organic Crystals through Halogen-Mediated Molecular Assembly》,we know some information about this compound(16004-15-2)Related Products of 16004-15-2, but this is not all information, there are many literatures related to this compound(16004-15-2).

Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Article, Research Support, U.S. Gov’t, Non-P.H.S., Journal of Organic Chemistry called Synthesis of (±)-nonactic acid, Author is Arco, Manuel J.; Trammell, Marion H.; White, James D., which mentions a compound: 3400-55-3, SMILESS is CC(Br)C(OCC)OCC, Molecular C7H15BrO2, Recommanded Product: 2-Bromopriopionaldehydediethylacetal.

(±)-Nonactic acid (I) Me ester was prepared from furan by 2 methods. 2-Lithiofuran was alkylated with propylene oxide to give alc. II which was converted in 10 further steps via tetrahydrofuryl alc. III and epinonactate IV to I Me ester. The adduct V of furan and MeCHBrCOCHBrMe was converted to I Me ester in 10 steps via alc. VI, vinyltetrahydrofuran VII, and aldehyde VIII.

From this literature《Synthesis of (±)-nonactic acid》,we know some information about this compound(3400-55-3)Recommanded Product: 2-Bromopriopionaldehydediethylacetal, but this is not all information, there are many literatures related to this compound(3400-55-3).

Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 3400-55-3, is researched, Molecular C7H15BrO2, about Fe-Catalyzed Reductive Couplings of Terminal (Hetero)Aryl Alkenes and Alkyl Halides under Aqueous Micellar Conditions, the main research direction is iron catalyst reductive coupling heteroaryl alkene alkyl halide.Recommanded Product: 3400-55-3.

The combination of a vinyl-substituted aromatic or heteroaromatic and an alkyl bromide or iodide leads, in the presence of Zn and a catalytic amount of an Fe(II) salt, to a net reductive coupling. The new C-C bond is regiospecifically formed at rt at the β-site of the alkene. The coupling only occurs in an aqueous micellar medium, where a radical process is likely, supported by several control experiments A mechanism based on these data is proposed.

There is still a lot of research devoted to this compound(SMILES：CC(Br)C(OCC)OCC)Recommanded Product: 3400-55-3, and with the development of science, more effects of this compound(3400-55-3) can be discovered.

Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Heterocyclic vinyl eters. XVI. 2,5 Dimethyl-1,4-dithiadiene》. Authors are Parham, William E.; Mayo, Gwendolyn L. O.; Gadsby, Brian.The article about the compound:2-Bromopriopionaldehydediethylacetalcas:3400-55-3,SMILESS:CC(Br)C(OCC)OCC).Synthetic Route of C7H15BrO2. Through the article, more information about this compound (cas:3400-55-3) is conveyed.

cf. C.A. 53, 17133b. 2,5-Dimethyl-1,4-dithiadiene (I), the 1st example of an alkyl dithiadiene, was prepared Na2S.9H2O (559 g.) in 2800 cc. boiling 95% EtOH and 149 g. S refluxed 10 min., treated with 654 g. MeCHBrCH(OEt)2 at such a rate as to maintain reflux, refluxed 3 hrs., 500 cc. solvent removed, treated with 135 g. NaHCO3, distilled to collect 2.1 l. solvent, cooled, diluted with 1500 cc. H2O, and extracted with Et2O, the extract evaporated, and the residue kept in vacuo to constant weight gave 525-50 g. black oily residue, n26D 1.50; a 538-g. portion in 500 cc. dry Et2O diluted with 5 l. liquid NH3, treated with 200 g. Na during 1 hr. and then with 500 cc. liquid NH3, stirred 30-40 min., treated with 200 g. NH4Cl in small portions, and evaporated with stirring, the gummy residue kept at 32° overnight, stirred with 1 l. iced H2O, adjusted with concentrated HCl to pH 8-8.5 and then with CO2 to pH 7.8-8.0, the aqueous layer extracted with Et2O, and the combined organic layer and Et2O extract worked up gave 300 g. MeCH(SH)CH(OEt)2 (II), b9 60-78°, n27D 1.436-1.437. II (1.5 g.), NaOEt from 0.23 g. Na in 10 cc. EtOH, and 1.5 cc. BuBr refluxed 1.5 hrs., acidified with concentrated HCl, and treated with 2,4-(O2N)2C6H3NHNH2 gave 2,4-(O2N)2C6H3NHN:CHCH(SBu)Me, 110-11° (95% EtOH). p-MeC6H4SO3H.H2O (1.0 g.) in C6H6 dried azeotropically, treated with 49.2 g. II, refluxed 2 hrs., cooled, washed, dried, and distilled yielded 26.2 g. semisolid mixed isomers of 2,5-dimethyl-3,6-diethoxy-1,4-dithiane (III), b0.35 82-7°, n25D 1.5012; the solid portion of the mixture recrystallized from 95% EtOH gave the α-isomer, cubes, m. 119-20°. Powd. KMnO4 (47.4 g.) added in small portions to 23.6 g. mixed isomeric III in 162 g. glacial AcOH, the mixture kept 3 days at room temperature, the AcOH distilled the residue diluted with 160 cc. H2O, treated with SO2, and filtered, the tarry, yellow, semisolid residue dried in vacuo and extracted with EtOAc in a Soxhlet apparatus, and the extract worked up gave 5.22 g. tetroxide of III, needles, m. 190-1° (absolute EtOH). III (12.00 g.) and 0.1 g. P2O5 heated at 160°, 1.93 g. EtOH removed during 2 hrs., the residue cooled and diluted with Et2O, and the Et2O solution worked up gave 4.24 g. 3-ethoxy-2,5-dimethyl-1,4-dithi-5-ene (IV), b5.3 104-5°, b0.25 60-2°, n26.5D 1.5437. The solid isomeric III (3.66 g.) gave 1.03 g. IV. Al2O3 pellets (60 g.) heated 40-8 hrs. at 260° in a vertical tube under N, cooled to 213°, 5 cc. absolute EtOH passed at 10-12 drops/min. with about 0.5 l. N/min. through the tube, 30 g. III in 25 cc. absolute EtOH added at the same rate and finally 10 cc. absolute EtOH, and the pyrolyzate condensed in a Dry Ice trap, washed with 2% aqueous NaOH and saturated aqueous NaCl, dried, and distilled yielded 6.9 g. I, b2.8 72-8°, n25D 1.56, and 8.2 g. IV, b2.0 91-106°, n26.5D 1.5329-1.5258. Similar pyrolytic runs on Al2O3, conditioned at 316-60° with a N flow of 0.3-0.5 l./min., at 204-310° gave yields of I and IV varying from 0-38 and 0-64%, resp.; at temperatures above 270° neither I nor IV were obtained. I (about 5 g.) in 1:1 Et2O-petr. ether chromatographed on Al2O3 gave pure I, pale yellow oil, b2.0 61-2°, n26D 1.5754. IV purified similarly gave an almost colorless oil, b2.4 90-2.5°, n26.9D 1.5383. IV (22.5 g.) passed at 227° over 60 g. Al2O3 pellets (conditioned at 360°) gave 7.1 g. unchanged IV, n26D 1.534, and 5.0 g. I, n26D 1.568. I (0.400 g.) in glacial AcOH treated at 70° with 2.5 cc. 30% H2O2 during 1.5 hrs., kept 18 hrs. at 70° and 1 hr. at 10°, and filtered from 0.35 g. product, the filtrate evaporated to dryness, the residue dissolved in 2 cc. glacial AcOH, treated with a few drops 30% H2O2, heated 0.5 hr. on the steam bath, and filtered, and the combined residues (0.57 g.) recrystallized from 95% EtOH gave tetroxide of I, m. 218-21° with sublimation. I (4.35 g.), b2.3 62-4°, n27.3D 1.5702, refluxed under a stream of N 1 hr. gave 0.88 g. 2,4-dimethylthiophene (V), n27.8D 1.5057, b. 90-138°, the residue distilled yielded 0.27 g. liquid, b2 55°, n27D 1.5218, and 2.13 g. black residue. V (0.75 g.) in 1.0 cc. C6H6 and 1.36 g. Ac2O treated at 60° with 4 drops 85% H2PO4, refluxed 2.5 hrs., cooled, diluted with 2.5 cc. H2O, kept overnight, and extracted with Et2O, the extract washed, dried, and evaporated, the residue refluxed 2 hrs. with 1 g. NH2OH.HCl, 5 cc. C5H5N, and 5 cc. absolute EtOH and evaporated at room temperature in vacuo, the residual oil triturated with 5 cc. H2O, and the resulting solid recrystallized from 95% EtOH gave a mixture, m. 55-68°, of a material, m. about 65°, and a material, m. about 120°, which could not be separated chromatographically; the mixture kept 14 days at room temperature in a sublimation apparatus gave a small amount of oxime of V, m. 118-23° (aqueous EtOH). p-MeC6H4SO3H (0.2 g.), 44.0 g. BuOH, and 12.0 g. IV refluxed 24 hrs., cooled, diluted with 150 cc. Et2O, and worked up gave 2.5 g. unchanged IV, and 7.3 g. 3-butoxy-2,5-dimethyl-1,4-dithi-5-ene, pale yellow oil, b0.45 81-91°, n28D 1.52; it reacted rapidly with O. I (1.89 g.) in 15 cc. petr. ether treated rapidly with 1.75 g. AlCl3, diluted with H2O, and stirred overnight, and the gray tarry precipitate triturated with 95% EtOH left a gray solid, (C6H8S2)x, m. 140-50°, insoluble in EtOH and Et2O. I (1.48 g.) in 125 cc. Ac2O treated with 1.3 cc. nitrating solution gave 0.30 g. amorphous brown solid. I (3.2 g.) in 25 cc. CCl4 treated at 0° with 1.6 g. Cl gave a CHCl3-insoluble black tar, and a CHCl3-soluble oil, b2.2 70° to b0.2 80°, which rapidly decomposed to a black tar and HCl. I (1.40 g.) in 130 cc. Ac2O treated with 1.6 g. Br gave 0.36 g. brown amorphous solid, m. 40-70° (the solid contained Br but decomposed upon attempted recrystallization), and 0.95 g. unidentified Et2O-soluble oil which gave no solid on oxidation with H2O2 in AcOH at 70°. I (1.5 g.), 1.4 g. Ac2O, and 2 drops 85% H3PO4 heated at 100° yielded 0.6 g. unchanged I and 0.22 g. orange oil, n25D 1.5850, which showed a CO absorption. I (1.00 g.) and a solution prepared from 58 g. HgCl2, 12 g. 33% aqueous NaOAc, and 54 g. 95% EtOH gave 1.35 g. solid, m. 100-30°, which digested with hot EtOH and filtered hot gave a solid, m. 85-100° (EtOH). Similar runs in the absence of NaOAc gave impure amorphous solids, m. above 285° and 100-200° (decomposition), resp.

There is still a lot of research devoted to this compound(SMILES：CC(Br)C(OCC)OCC)Synthetic Route of C7H15BrO2, and with the development of science, more effects of this compound(3400-55-3) can be discovered.

Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

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: 2-Bromopriopionaldehydediethylacetal, is researched, Molecular C7H15BrO2, CAS is 3400-55-3, about Alkylation of disodiopentane-2,4-dione with halo acetals.Recommanded Product: 2-Bromopriopionaldehydediethylacetal.

NaCH2COCHNaCOMe with RCH2CH(OR1)2 (I; R = Br, R1 = Me, Et, CH2) gave 49, 46, and 38% (R1O)2CH(CH2)2COCH2COMe, resp. Similarly Br(CH2)2CH(OEt)2 and Cl(CH2)2CH(OCH2)2 gave dioxooctanal acetals. The lack of reactivity between I (R = Cl, R1 = Me, Et, CH2) and NaCH2COCHNaCOMe was explained by steric hindrance and the leaving group ability of Cl.

There is still a lot of research devoted to this compound(SMILES：CC(Br)C(OCC)OCC)Recommanded Product: 2-Bromopriopionaldehydediethylacetal, and with the development of science, more effects of this compound(3400-55-3) can be discovered.

Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

Nallagonda, Rajender; Musaev, Djamaladdin G.; Karimov, Rashad R. published the article 《Light-Promoted Dearomative Cross-Coupling of Heteroarenium Salts and Aryl Iodides via Nickel Catalysis》. Keywords: dihydropyridine aryl preparation regioselective; aryl iodide pyridinium dearomative cross coupling nickel iridium photocatalyst.They researched the compound: 1-(Bromomethyl)-4-iodobenzene( cas:16004-15-2 ).Synthetic Route of C7H6BrI. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:16004-15-2) here.

Herein, the coupling of aryl iodides, e.g., Ph iodide with pyridinium and related heteroarenium salts, e.g., I catalyzed by Ni/bpp and an Ir photocatalyst using Zn as a terminal reductant was reported. This methodol. tolerates a wide range of functional groups and allows the coupling of aryl and heteroaryl iodides, thus significantly expanding the scope of nitrogen heterocycle scaffolds, e.g., II that could be prepared through dearomatization of heteroarenes. The reaction products have been further functionalized to prepare various nitrogen heterocycles. Initial mechanistic studies indicate that the reaction described herein goes through a unique mechanism involving dimers of dihydroheteroarenes.

From this literature《Light-Promoted Dearomative Cross-Coupling of Heteroarenium Salts and Aryl Iodides via Nickel Catalysis》,we know some information about this compound(16004-15-2)Synthetic Route of C7H6BrI, but this is not all information, there are many literatures related to this compound(16004-15-2).

Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 1-(Bromomethyl)-4-iodobenzene(SMILESS: IC1=CC=C(CBr)C=C1,cas:16004-15-2) is researched.Category: quinoxaline. The article 《One pot synthesis of isocyano-containing, densely functionalised gem-difluoroalkenes from α-trifluoromethyl alkenes, alkyl halides and TosMIC》 in relation to this compound, is published in Organic Chemistry Frontiers. Let’s take a look at the latest research on this compound (cas:16004-15-2).

A base-promoted one-pot, three-component reaction of TosMIC with α-trifluoromethyl alkenes and alkyl halides for the synthesis of isocyano- containing, densely functionalized gem-difluoroalkenes were reported. This protocol displayed broad scope and excellent functional group compatibility. The products were used as precursors to various medicinally relevant fluorine- or heterocycle-containing compouds.

Here is a brief introduction to this compound(16004-15-2)COA of Formula: C7H6BrI, if you want to know about other compounds related to this compound(16004-15-2), you can read my other articles.

Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics