Category: isoquinoline

In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Effect of linear and non-linear pseudohalides on the structural and magnetic properties of Co(II) hexacoordinate single-molecule magnets, published in 2018, which mentions a compound: 1671-88-1, Name is 3,5-Di(pyridin-2-yl)-4H-1,2,4-triazol-4-amine, Molecular C12H10N6, Electric Literature of C12H10N6.

Mononuclear hexacoordinate Co(II) complexes with the 4-amino-3,5-bis(2-pyridyl)-1,2,4-triazole (abpt) ligand and various linear and nonlinear pseudohalides, such as NCSe (selenocyanate), N{C(CN)2}2 (1,1,3,3-tetracyano-2-azapropenide, tcap), NO2C(CN)2 (nitrodicyanomethanide, nodcm), C(CN){C(CN)2}2 (1,1,2,3,3-pentacyanopropenide, pcp), NO2NCN (nitrocyanamide, nca), and ONC(CN)2 (nitrosodicyanomethanide, ndcm), was prepared X-ray analyses revealed the formation of [Co(abpt)2(solv)2]X2 (solv = H2O and X = tcap (1), solv = H2O and X = nodcm (2), solv = CH3OH and X = pcp (3)) or [Co(abpt)2(X)2] (X = nca (4), X = NCSe (5), X = ndcm (6)). The impact of axial co-ligands (solv or X) on the magnetic properties was studied exptl. by measuring temperature- and field-dependent static (d.c.) and dynamic magnetic (a.c.) data as well as theor. using the CASSCF/NEVPT2, AILFT, and AOM methods. Large magnetic anisotropy was found for all complexes 1-6 and was treated either by the spin Hamiltonian or with the Hamiltonian including the orbital angular momentum. Also, the a.c. susceptibility measurements confirmed the slow relaxation of the magnetization in a nonzero static magnetic field, thus these complexes can be classified as field-induced single-mol. magnets with an estimated energy barrier Ueff up to 100 K.

From this literature《Effect of linear and non-linear pseudohalides on the structural and magnetic properties of Co(II) hexacoordinate single-molecule magnets》,we know some information about this compound(1671-88-1)Electric Literature of C12H10N6, but this is not all information, there are many literatures related to this compound(1671-88-1).

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Isoquinoline | C9H7N – PubChem

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, New Journal of Chemistry called Structural studies into the spin crossover behavior of Fe(abpt)2(NCS)2 polymorphs B and D, Author is Mason, Helen E.; Musselle-Sexton, Jake R. C.; Howard, Judith A. K.; Probert, Michael R.; Sparkes, Hazel A., which mentions a compound: 1671-88-1, SMILESS is NN1C(C2=NC=CC=C2)=NN=C1C3=NC=CC=C3, Molecular C12H10N6, COA of Formula: C12H10N6.

The spin-crossover behavior of [Fe(abpt)2(NCS)2] (abpt = 4-amino-3,5-bis(pyridin-2-yl)-1,2,4-triazole) polymorphs B and D was studied using single crystal x-ray diffraction to monitor changes in structural features. High pressure single crystal measurements on polymorph B showed that it underwent a monoclinic P21/n (Z’ = 0.5) to triclinic P-1 (Z’ = 2 x 0.5) phase transition between 11.5 and 13.5 kbar, at which point it also starts to undergo a thermally inaccessible spin crossover. In polymorph D which also crystallizes in the monoclinic space group P21/n (Z’ = 2 x 0.5) one of the unique Fe centers undergoes a thermal spin transition. It also displays light-induced excited spin-state trapping (LIESST), and a structure was obtained at 30 K through continuous irradiation with a 670. nm 5 mW continuous-wave laser. In addition high pressure single crystal measurements on polymorph D showed a stepped pressure induced spin transition. At ~9.6 kbar one of the unique Fe centers had undergone a spin transition and by ~15 kbar both of the unique Fe centers are essentially low spin, a situation that is thermally inaccessible. Crystallog. data were collected for both polymorphs using variable temperature or high pressure single crystal x-ray diffraction to allow changes in cell parameters, bond lengths and distortion parameters to be monitored for the spin crossover or phase transition.

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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: (3aR,8aR)-2,2-Dimethyl-4,4,6,8,8-pentaphenyltetrahydro-[1,3]dioxolo[4,5-e][1,3,2]dioxaphosphepine, is researched, Molecular C37H33O4P, CAS is 147700-62-7, about Synthesis of β-Lactams by Palladium(0)-Catalyzed C(sp3)-H Carbamoylation.SDS of cas: 147700-62-7.

A general and user-friendly synthesis of β-lactams, e.g., I and II, is reported that makes use of Pd0-catalyzed carbamoylation of C(sp3)-H bonds, and operates under stoichiometric carbon monoxide in a two-chamber reactor. This reaction is compatible with a range of primary, secondary and activated tertiary C-H bonds, in contrast to previous methods based on C(sp3)-H activation. In addition, the feasibility of an enantioselective version using a chiral phosphonite ligand is demonstrated. Finally, this method can be employed to synthesize valuable enantiopure free β-lactams and β-amino acids.

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Application In Synthesis of (3aR,8aR)-2,2-Dimethyl-4,4,6,8,8-pentaphenyltetrahydro-[1,3]dioxolo[4,5-e][1,3,2]dioxaphosphepine. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: (3aR,8aR)-2,2-Dimethyl-4,4,6,8,8-pentaphenyltetrahydro-[1,3]dioxolo[4,5-e][1,3,2]dioxaphosphepine, is researched, Molecular C37H33O4P, CAS is 147700-62-7, about Derivatives of α,α,α’,α’-tetraaryl-2,2-dimethyl-1,3-dioxolane-4,5-dimethanol (TADDOL) containing nitrogen, sulfur, and phosphorus atoms. New ligands and auxiliaries for enantioselective reactions. Author is Seebach, Dieter; Hayakawa, Michiya; Sakaki, Junichi; Schweizer, W. Bernd.

α,α,α’,α’-Tetraaryl-2,2-dimethyl-1,3-dioxolane-4,5-dimethanols I (R = Ph, 2-naphthyl, X = X’ = OH) are converted to bicyclic phosphites and phosphonites II (R1 = Me, Ph, OMe, OPh) by reaction with Cl2PR1. One or both OH groups of I (X = X’ = OH) can be replaced by Cl, and the halide in turn substituted by azide, thiocyanide, or sulfide (giving, e.g., III; X’ = S). Reduction of the azido group(s) to NH2 and N-alkylation or acylation furnishes a variety of amino alcs. I (X’ = NH2, NHMe, NMe2, NHCH2Ph, X = OH) and diamines I (X = X’ = NH2, NHMe, NMe2) as well as a bis(trifluoroacetamide) I (X = X’ = NHCOCF3). Cyclization of the aminoalc. I (X = OH, X’ = NH2) produces a bicyclic system III (X’ = NH), containing a pyrrolidine ring (structure determination by x-ray diffraction). The new chiral compounds containing nitrogen and phosphorus atoms might be useful ligands and auxiliaries for enantioselective syntheses.

From this literature《Derivatives of α,α,α’,α’-tetraaryl-2,2-dimethyl-1,3-dioxolane-4,5-dimethanol (TADDOL) containing nitrogen, sulfur, and phosphorus atoms. New ligands and auxiliaries for enantioselective reactions》,we know some information about this compound(147700-62-7)Application In Synthesis of (3aR,8aR)-2,2-Dimethyl-4,4,6,8,8-pentaphenyltetrahydro-[1,3]dioxolo[4,5-e][1,3,2]dioxaphosphepine, but this is not all information, there are many literatures related to this compound(147700-62-7).

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The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Enamines. V. Synthesis of 1-arylpyrazoles》. Authors are Fusco, Raffaello; Bianchetti, Giuseppe; Pocar, Donato.The article about the compound:1,5-Diphenyl-1H-pyrazole-3-carboxylic acidcas:13599-22-9,SMILESS:OC(=O)C1=NN(C(=C1)C1=CC=CC=C1)C1=CC=CC=C1).Computed Properties of C16H12N2O2. Through the article, more information about this compound (cas:13599-22-9) is conveyed.

cf. CA 56, 14018c. Enamines and halogenated hydrazones reacted to give pyrazole derivatives In anhyd, conditions 16.7 g. 1-morpholinocyclohex-l-ene (I), 10.1 g. NEt3, 150 mL. CHCl3, and 22.6 g. PhNHN: CClCO2Et added in 50 mL. CHCl3 was stirred and heated to 40° for 1 h. and kept overnight to give 65% 1-phenyl-3-carbethoxy-4,5,6,7-tetrahydroindazole (II) m. 103-4.5° (EtOH), hydrolyzed by alc. NaOH to 1-phenyl-4,5,6,7-tetrahydroindazole-3-carboxylic acid, m. 164° (AcOH). Similarly, the p-chlorophenyl compound, m. 139-40°, and its corresponding acid m. 218°. Treatment of I with PhNHN:CClAe gave 1-phenyl-3-acetyl-4,5,6,7-tetrahydroindazole, m. 95-6°; phenylhydrazone m. 216° (dilute AcOH). 1-Morpholino-4-methylcyclohex-1-ene gave the 5-Me deriv, of II, m. 129°, hydrolyzed to the corresponding acid m. 198°. 1-Phenyl-3-carbethoxy-4,5,6,7-tetrahydrocydohepta[c]pyrazole (III), m. 87% was prepared from 1-morpholinocyclohept-1-ene and was hydrolyzed to the corresponding acid, m. 166-8°. The 1-(p-chlorophenyl) compd, corresponding to III could not be isolated and was hydrolyzed to the acid, m. 206-7°. From 2 morpholino-3,4-dihydronaphthalene and PhNHN: CClCO2Et, 1-phenyl-3-carbethoxy-8,9-dihydronaphtho[1,2-c]pyrazole, m. 154-5°, was prepared, giving the acid, m. 170°, on hydrolysis: when decarboxylated at 240°, this gave 1-phenyl-8,9-dihydronaphtho[1,2-c]pyrazole, m. 118°. The compound formed from 1-morpholinocyclopent-1-ene and PhNHN:-CClCO2Et was an intermediate, C19H25N3O3, m. 130° (ale.), converted into the expected 1-phenvl-3-carbethoxy-4,5-dihydrocyclopenta[c] pyrazole, m. 143°. on boiling with AcOH followed by precipitation by addition of water. The corresponding acid, m. 211°; Me ester m. 139°. Similarly the 1-(p-chlorophenyl) compd, gave an adduet, C19H24ClN3O3, m. 114° cyclized to the pyrazole, m. 120-1°, which in turn was hydrolyzed to the corresponding free acid, m. 215-16°. Similarly were prepared 1-phenyl-3-carbethoxyindeno[1,2-c]-pyrazole, m. 162-3° (the acid m. 256°), 1-phenyl-3-carbethoxy-4-ethylpyrazole, m. 70° (free acid m. 138°), 1-phenyl-3-carbethoxy-4-n-amylpyrazole, m. 45-6° (free acid m. 121°), [the corresponding 1-(p-chlorophenyl) compd, m. 62° (free acid m. 115°)]. From 2-N-methyl-N-phenyl-amino-4-methylpent-l-ene, the ester prepd, was an oil, b2 186°, which gave 1-phenyl-5-isobutylpyrazole-3-carboxylic acid, m. 129°, on hydrolysis, α-(N-Methyl-N-phenyl)-aminostyrene and PhNHN:CClCO2Et after reaction, evapn, of solvent, steam distn, to remove PhAe, and hydrolysis gave 1,5-diphenylpyrazole-3-carboxylic acid, m. 183°. 1-Phenyl-3-carbethoxy-4-γ-methylaminoethyl-5-methylpyrazole oxalate, m. 174-5° (iso-PrOH), was prepared from 1,2-dimethyl-4,5-dihydropyrrole and gave the corresponding base, as a straw-colored oil, b1.5 220-40°, which on hydrolysis with 40% HBr gave the free carboxylic acid of the base after addition of Ag2O to precipitate AgBr, filtration, and passage of H2S to decomp, the Ag salt; the filtrate evaporated to dryness and the solid washed with MeOH and recrystallized from water gave the acid, m. 297°. 1-Phenyl-3-carbethoxy-4-γ-methylaminopropyl-5-methylpyrazole-HCl, m. 186-7° (iso-PrOH), 1-phenyl-4-γ-methylaminopropyl-5-methylpyrazolecarboxylic acid, m. 270-1° (5% aqueous EtCO-Me), and 1-phenyl-3-acetyl-4-γ-methylaminopropyl-5-methylpyrazole oxalate, m. 17,5-6°, were also prepared

From this literature《Enamines. V. Synthesis of 1-arylpyrazoles》,we know some information about this compound(13599-22-9)Computed Properties of C16H12N2O2, but this is not all information, there are many literatures related to this compound(13599-22-9).

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Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Zhang, Yihua; Hoernfeld, Anna-Britta; Gronowitz, Salo published the article 《Pyridine-substituted hydroxythiophenes. V. Preparation of 5-(2-, 3- and 4-pyridyl)-2-hydroxythiophenes》. Keywords: pyridine substituted hydroxythiophene; thiophene hydroxy pyridyl; tautomerism hydroxythiophene pyridyl.They researched the compound: 2-(5-Bromothiophen-2-yl)pyridine( cas:123784-07-6 ).Related Products of 123784-07-6. 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:123784-07-6) here.

5-(2-, 3- And 4-pyridyl)-2-t-butoxythiophenes have been prepared in very good yields by Pd(0) catalyzed cross-coupling of the three isomeric bromopyridines with 5-trimethylstannyl-2-t-butoxythiophene derived from 2-bromothiophene via 2-t-butoxythiophene. Dealkylation of 5-(2-, 3- and 4-pyridyl)-2-t-butoxythiophenes with boron trifluoride etherate in dichloromethane at room temperature led to predominant formation of rearranged products, 5-(2- and 3-pyridyl)-3-t-butyl-3-thiolene-2-ones, together with a small amount of 5-(2- and 3-pyridyl)-2-hydroxythiophenes as a mixture of two tautomeric keto forms in the case of the 2-pyridyl and the 3-pyridyl isomers, and exclusive formation of rearranged product in the case of the 4-pyridyl isomer. However, dealkylation of 2-methoxy-5-(2-, 3- and 4-pyridyl)thiophenes, prepared similarly to the 5-(2-, 3- and 4-pyridyl)-2-t-butoxythiophenes, with boron tribromide under the same reaction conditions as above resulted exclusively in the tautomeric mixture of 5-(2- and 3-pyridyl)-3-thiolene-2-ones and 5-(2- and 3-pyridyl)-4-thiolene-2-ones in the case of the 2-pyridyl and 3-pyridyl isomers. In the case of the 4-pyridyl isomer polymerization took place.

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Tay, Wee Shan; Li, Yongxin; Yang, Xiang-Yuan; Pullarkat, Sumod A.; Leung, Pak-Hing published the article 《Air-stable phosphine organocatalysts for the hydroarsination reaction》. Keywords: phosphine organocatalyst hydroarsination nitro styrene; crystal structure mol diphenyl arsinic acid preparation.They researched the compound: Diphenyl-2-pyridylphosphine( cas:37943-90-1 ).Recommanded Product: Diphenyl-2-pyridylphosphine. 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:37943-90-1) here.

Readily-available triarylphosphines are explored as organocatalysts for the hydroarsination reaction. When compared to transition metal catalysis, phosphine organocatalysis greatly improved solvent compatibility of the hydroarsination of nitrostyrenes. Upon complete conversion, arsine products were isolated in up to 99% yield while up to 48% of the phosphine catalyst was still active. A mechanism was proposed and structure-activity anal. regarding catalyst activity concluded that sterically-bulkier catalysts were effective at minimizing catalyst deactivation.

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Meng, Zhao-Sha; Yun, Lei; Zhang, Wei-Xiong; Hong, Chao-Gang; Herchel, Radovan; Ou, Yong-Cong; Leng, Ji-Dong; Peng, Meng-Xia; Lin, Zhuo-Jia; Tong, Ming-Liang published the article 《Reactivity of 4-amino-3,5-bis(pyridin-2-yl)-1,2,4-triazole, structures and magnetic properties of polynuclear and polymeric Mn(II), Cu(II) and Cd(II) complexes》. Keywords: manganese cadmium pyridinyl aminotriazole azide complex preparation structure magnetism; copper pyridinyl aminotriazolate azide benzenetricarboxylate complex preparation structure magnetism; crystal structure manganese copper cadmium pyridinyl aminotriazole triazolate benzenetricarboxylate; magnetic property manganese copper pyridinyl aminotriazole triazolate azide benzenetricarboxylate; deamination pyridinyl aminotriazole copper complex.They researched the compound: 3,5-Di(pyridin-2-yl)-4H-1,2,4-triazol-4-amine( cas:1671-88-1 ).Safety of 3,5-Di(pyridin-2-yl)-4H-1,2,4-triazol-4-amine. 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:1671-88-1) here.

Five new complexes were obtained from solution or hydrothermal reactions of M(OAc)2 (M = Mn, Cu and Cd) or CuCl2 with 4-amino-3,5-bis(pyridin-2-yl)-1,2,4-triazole (abpt) and NaN3 or 1,3,5-benzenetricarboxylic acid (btcH3) in different molar ratios. Structural anal. reveals that Cd(abpt) units in [Cd(abpt)(μ1,1-N3)2]n (1) are bridged by double μ1,1 end-on (EO) azides into 1-dimensional zigzag coordination chains. Similar structural motifs, i.e. the chelation of abpt to the metal center and the double bridges of EO azides, are found in [Mn4(abpt)4(μ1,1-N3)8(H2O)2] (2). The terminal aqua mols. and the monodentate N3- groups give a tetranuclear complex rather than a polymeric compound The abpt underwent deamination in the presence of copper ions during the process of coordination and became 3,5-bis(pyridin-2-yl)-1,2,4-triazolate (bpt-H) in 3-5. [Cu4(bpt-H)4(N3)4]·4.5H2O (3) is a neutral tetranuclear grid-like complex, in which the azides act as monodentate ligands. A similar [Cu4(bpt-H)4]4+ grid-like unit was found in [Cu4(bpt-H)4(μ-btcH)Cl2]·2H2O (4) and a pair of symmetry-related copper atoms are bridged by the μ-btcH2- coligand in a butterfly-shaped structure. In [Cu2(bpt-H)(μ6-btc)(H2O)]n (5), the tetranuclear {Cu4(μ-bpt-H)2(μ3-carboxylate)2}4+ units are bridged by μ6-btc3- ligands in a 2-dimensional step-like layer structure. Temperature-dependent magnetic susceptibility measurements reveal that the double μ1,1-N3- bridges in 2 transmit the ferromagnetic interactions between Mn2+ centers (J1 = J2 = +3.09(4) cm-1, gMn(ii) = 2.02(1)), and the μ-(bpt-H)- bridges transmit moderate antiferromagnetic interactions in both 3 (J = -12.78(13) cm-1) and 4 (J1 = -14.96(11) cm-1). In 4 the antiferromagnetic coupling via the μ-btcH2- bridge is the 2nd coupling pathway (J2 = -9.48(7) cm-1). The coexistence of ferromagnetic and antiferromagnetic coupling between four Cu2+ centers occurs in 5 (J1 = -0.88(3) cm-1 and J2 = +5.01(2) cm-1). The magneto-structural relation for tetranuclear copper pyrazolate/triazolate compounds is discussed.

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SDS of cas: 147700-62-7. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: (3aR,8aR)-2,2-Dimethyl-4,4,6,8,8-pentaphenyltetrahydro-[1,3]dioxolo[4,5-e][1,3,2]dioxaphosphepine, is researched, Molecular C37H33O4P, CAS is 147700-62-7, about Scope and Mechanism of the Pt-Catalyzed Enantioselective Diboration of Monosubstituted Alkenes. Author is Coombs, John R.; Haeffner, Fredrik; Kliman, Laura T.; Morken, James P..

The Pt-catalyzed enantioselective diboration of terminal alkenes can be accomplished in an enantioselective fashion in the presence of chiral phosphonite ligands. Optimal procedures and the substrate scope of this transformation are fully investigated. Reaction progress kinetic anal. and kinetic isotope effects suggest that the stereodefining step in the catalytic cycle is olefin migratory insertion into a Pt-B bond. D. functional theory anal., combined with other exptl. data, suggests that the insertion reaction positions platinum at the internal carbon of the substrate. A stereochem. model for this reaction is advanced that is in line both with these features and with the crystal structure of a Pt-ligand complex.

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In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Extending the versatility of the Hemetsberger-Knittel indole synthesis through microwave and flow chemistry, published in 2013-03-15, which mentions a compound: 67929-86-6, Name is Methyl 5-methoxyindole-2-carboxylate, Molecular C11H11NO3, Computed Properties of C11H11NO3.

Microwave, flow and combination methodologies were applied to the synthesis of a number of substituted indoles. Based on the Hemetsberger-Knittel (HK) process, modifications allow formation of products rapidly and in high yield. Adapting the methodol. allows formation of 2-unsubstituted indoles and derivatives, and a route to analogs of the antitumor agent PLX-4032 is demonstrated. The utility of the HK substrates is further demonstrated through bioconjugation and subsequent ring closure and via Huisgen type [3+2] cycloaddition chem., allowing formation of peptide adducts which can be subsequently labeled with fluorine tags.

If you want to learn more about this compound(Methyl 5-methoxyindole-2-carboxylate)Computed Properties of C11H11NO3, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(67929-86-6).

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Isoquinoline – Wikipedia,
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