Category: ruthenium-catalysts

COA of Formula: C7H5NO. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 1,2-Benzisoxazole, is researched, Molecular C7H5NO, CAS is 271-95-4, about Self-consistent field molecular orbital calculation for anthranil, benzisoxazole, and benzoxazole. Author is Carson, Susan D.; Rosenberg, Herbert M..

Energy transitions and oscillator strengths for the singlet and triplet states of anthranil, benzisoxazole, and benzoxazole have been calculated by using self-consistent-field M.O. methods. Agreement with exptl. absorption data is quite good for benzisoxazole and benzoxazole, but less satisfactory for anthranil.

In some applications, this compound(271-95-4)COA of Formula: C7H5NO is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

Reference:
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

Category: ruthenium-catalysts. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 2-Chloro-6-nitrobenzo[d]thiazole, is researched, Molecular C7H3ClN2O2S, CAS is 2407-11-6, about Synthesis and antileishmanial activity of (1,3-benzothiazol-2-yl) amino-9-(10H)-acridinone derivatives. Author is Delmas, Florence; Avellaneda, Antonio; Di Giorgio, Carole; Robin, Maxime; De Clercq, Erik; Timon-David, Pierre; Galy, Jean-Pierre.

(1,3-Benzothiazol-2-yl) amino-9-(10H)-acridinones were synthesized via a procedure based on the Ullman reaction and were assessed for their in vitro antileishmanial and anti-HIV activities. Two derivatives, 4-(6-nitro-benzothiazol-2-ylamino)-10H-acridin-9-one (I) and 1-(6-amino-benzothiazol-2-ylamino)-10H-acridin-9-one (II), revealed a selective antileishmanial activity, mainly due to amastigote-specific toxicity. Results suggested that the addition of a benzothiazole group on a parent amino-9-(10H)-acridinone ring could enhance antileishmanial abilities, the presence of a 6-amino-benzothiazole group on position 2 amino chain or a 6-nitro-benzothiazole group on position 4 amino chain was essential for specific anti-amastigote properties.

In some applications, this compound(2407-11-6)Category: ruthenium-catalysts is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

Reference:
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

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 Effects of Initiator Structure on Activation Rate Constants in ATRP, published in 2007-03-20, which mentions a compound: 19481-82-4, mainly applied to copper mediated ATRP initiator structure influence, Synthetic Route of C3H4BrN.

Activation rate constants (kact) for a variety of initiators for Cu-mediated ATRP were determined under the same conditions. The ratio of the activation rate constants for the studied alkyl (pseudo)halides exceeds 1 million times. The activation rate constants increase with initiator substitution (e.g., for primary, secondary, and tertiary α-bromoesters the ratios are ∼110:80), with the radical stabilizing α-substituent (e.g., alkyl bromides with -C(O)NEt2, -Ph, -C(O)OMe, and -CN groups the ratios are ∼1:4:8:600 but with both α-Ph and α-C(O)OEt∼140,000), and with the leaving atom/group (e.g., for Me 2-halopropionates: chloro:bromo:iodo ∼1:20:35, but benzyl bromide is ∼10,000 more reactive than the corresponding isothiocyanate/thiocyanate).

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Reference:
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

Xue, Zhigang; Kim, Ji Yoon; Noh, Seok Kyun; Lyoo, Won Seok published an article about the compound: 2-Bromopropanenitrile( cas:19481-82-4,SMILESS:CC(Br)C#N ).Synthetic Route of C3H4BrN. 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:19481-82-4) through the article.

ATRP of MMA was conducted in the presence of FeX2/(2-pyridine)diphenylphosphine (DPPP) complex (X = Br, Cl) using 2-halopropionitriles (Hal = Br, Cl) as initiators. Effects of initiation system, solvent (none, p-xylene, anisole, di-Ph ether, Me Et ketone, and toluene), and reaction temperature (60, 80, and 100°) on polymerization kinetics and outcome were studied. 2-Bromopropionitrile (BPN) as initiator showed a better control of polymerization with faster initiation and slower polymerization Bulk and p-xylene solution polymerization using BPN/FeBr2/DPPP initiation system gave polymers with quite narrow polydispersity indexes. The controlled nature of polymerization was confirmed by the formation of high mol. weight poly(Me methacrylate)s (PMMA) using a PMMA macroinitiator in a chain extension experiment

In some applications, this compound(19481-82-4)Synthetic Route of C3H4BrN is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

Reference:
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Visible-light synthesis of 4-substituted-chroman-2-ones and 2-substituted-chroman-4-ones via doubly decarboxylative Giese reaction》. Authors are Moczulski, Marek; Kowalska, Ewelina; Kusmierek, Elzbieta; Albrecht, Lukasz; Albrecht, Anna.The article about the compound:Tris(2,2′-bipyridine)ruthenium bis(hexafluorophosphate)cas:60804-74-2,SMILESS:F[P-](F)(F)(F)(F)F.F[P-](F)(F)(F)(F)F.C1(C2=NC=CC=C2)=NC=CC=C1.C3(C4=NC=CC=C4)=NC=CC=C3.C5(C6=NC=CC=C6)=NC=CC=C5.[Ru+2]).Safety of Tris(2,2′-bipyridine)ruthenium bis(hexafluorophosphate). Through the article, more information about this compound (cas:60804-74-2) is conveyed.

Doubly decarboxylative, photoredox synthesis of 4-substituted-chroman-2-ones and 2-substituted-chroman-4-ones was described. The reaction involved two independent decarboxylation processes: the first one initiating the cycle and the second completing the process. Visible light, photoredox catalyst, base, anhydrous solvent and inert atm. constitute the key parameters for the success of the developed transformation. The protocol proved applicable for coumarin-3-carboxylic acids and chromone-3-carboxylic acids as well as N-(acyloxy)phthalimide which served as precursors of the corresponding alkyl radicals.

In some applications, this compound(60804-74-2)Safety of Tris(2,2′-bipyridine)ruthenium bis(hexafluorophosphate) is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

Reference:
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

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, Synlett called Dirhodium caprolactamate catalyzed alkoxyalkylation of terminal alkynes, Author is Tusun, Xiarepati; Lu, Chong-Dao, which mentions a compound: 138984-26-6, SMILESS is C12=O[Rh+2]3(O=C4[N-]5CCCCC4)([N-]6C(CCCCC6)=O7)[N-](CCCCC8)C8=O[Rh+2]357[N-]1CCCCC2, Molecular C24H40N4O4Rh2, Application In Synthesis of Dirhodium(II) tetrakis(caprolactam).

Dirhodium caprolactamate [Rh2(cap)4] effectively catalyzes alkoxyalkylation of terminal alkynes in the presence of tert-Bu hydroperoxide (TBHP) under mild conditions. Thus, a variety of 2-vinyl ethers were synthesized via direct addition of ethers to terminal alkynes under mild reaction conditions.

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Reference:
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

Synthetic Route of C3H4BrN. 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: 2-Bromopropanenitrile, is researched, Molecular C3H4BrN, CAS is 19481-82-4, about Synthesis of high performance polyacrylonitrile by RASA SET-LRP in the presence of Mg powder. Author is Chen, Hou; Lv, Gaojian; Liang, Ying; Sun, Jinming.

High performance polyacrylonitrile (PAN) was prepared with Mg powder as both reducing agent (RA) and supplemental activator (SA) by single electron transfer-living radical polymerization (RASA SET-LRP). First-order kinetics of polymerization with respect to monomer concentration, linear increase of mol. weight, and narrow polydispersity with monomer conversion, and the obtained high isotacticity PAN indicate that RASA SET-LRP in the presence of Mg powder could simultaneously control mol. weight and tacticity of PAN compared with that obtained with ascorbic acid (VC) as RA. An obvious increase in isotacticity of PAN was observed The block copolymer PAN-b-PAN with mol. weight of 112,460, polydispersity of 1.33, and isotacticity of 0.314 was successfully prepared © 2013 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2013.

In some applications, this compound(19481-82-4)Synthetic Route of C3H4BrN is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

Reference:
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

Synthetic Route of C24H40N4O4Rh2. 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. Compound: Dirhodium(II) tetrakis(caprolactam), is researched, Molecular C24H40N4O4Rh2, CAS is 138984-26-6, about Synthesis of annulated pyridines as inhibitors of aldosterone synthase (CYP11B2).

A series of cyclopenta[c]pyridine aldosterone synthase (AS) inhibitors were conveniently accessed using batch or continuous flow Kondrat’eva reactions. Preparation of the analogous cyclohexa[c]pyridines, e. g., I, led to the identification of a potent and more selective AS inhibitor. The structure-activity-relationship (SAR) in this new series was rationalized using binding mode models in the crystal structure of AS.

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Reference:
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

Reference of Quinolin-6-ylboronic acid. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: Quinolin-6-ylboronic acid, is researched, Molecular C9H8BNO2, CAS is 376581-24-7, about Achieving C(sp2)-C(sp3) Coupling with BCP-F2 Building Blocks via Barluenga Coupling: A Comparative Approach. Author is Ma, Xiaoshen; Yeung, Charles S..

The C(sp2)-C(sp3) coupling reactions with 2,2-difluorobicyclo[1.1.1]pentane (BCP-F2) e.g., I building blocks are achieved. By comparing the reactivities of matching pairs of bicyclo[1.1.1]pentane (BCP) and BCP-F2 analogs, it was discovered that the Barluenga coupling reaction was the only cross-coupling protocol that translated well between the two structural motifs in contrast to other reported protocols. In this chem., a BCP-F2 bearing a tosylhydrazone functional group is cross-coupled with an arylboronic acid ArBOH (Ar = 3-pyridyl, 4-chlorophenyl, 6-quinolinyl, 4-biphenyl, etc.). These results further expanded the scope of BCP-F2 building blocks for potential applications in organic chem. as well as medicinal chem.

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Reference:
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Research on benzothiazole. VII. Effect of halogen on the nucleophilic reactivity of 2-halobenzothiazoles》. Authors are Ricci, Alfredo; Todesco, Paolo Edgardo; Vivarelli, Piero.The article about the compound:2-Chloro-6-nitrobenzo[d]thiazolecas:2407-11-6,SMILESS:O=[N+](C1=CC=C2N=C(Cl)SC2=C1)[O-]).Formula: C7H3ClN2O2S. Through the article, more information about this compound (cas:2407-11-6) is conveyed.

cf. CA 61, 8291e. The reactions of a series of 2-halobenzothiazoles and the corresponding 6-nitro derivatives with MeO- and PhS- were studied in MeOH at 25°. 2-Fluorobenzothiazole reacts with MeO- about 20 times faster than with PhS-. With the other 2-halo derivatives, the reactivity with MeO- and PhS- is comparable. Only in the 6-nitro derivatives was the normal Ph- >>MeO- reactivity found. In both series with MeO- the order of reactivity was F>>Cl>Br>I and this was correlated with the 6 para values for the halogens. A linear relationship was found between the polarizability of the leaving group (as measured by the log of the C-halogen bond refractivity constant) and the log of kPhS-/ k MeO-.

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Reference:
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI