Tag: M.W:100-200

Electric Literature of 19493-44-8, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.19493-44-8, Name is 1-Chloroisoquinoline, molecular formula is C9H6ClN. In a Patent£¬once mentioned of 19493-44-8

Process for production of decahydroisoquinoline

A process for the production of decahydroisoquinoline is disclosed which comprises hydrogenating isoquinoline or partially hydrogenated isoquinoline in the presence of a ruthenium catalyst at a temperature of 110 C. to 230 C. under a hydrogen pressure of at least 10 kg/cm2 *G.

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Synthetic Route of 4602-73-7, Because a catalyst decreases the height of the energy barrier, its presence increases the reaction rates of both the forward and the reverse reactions by the same amount.4602-73-7, Name is 7-Hydroxy-6-methoxy-3,4-dihydroisoquinoline, molecular formula is C10H11NO2. In a article£¬once mentioned of 4602-73-7

Synthesis of 2-quinolones via palladium-catalyzed carbonylative annulation of internal alkynes by N-substituted o-iodoanilines

The palladium-catalyzed annulation of internal alkynes by N-substituted o-iodoanilines under 1 atm of carbon monoxide results in the formation of 3,4-disubstituted 2-quinolones. The nature of the substituent on the nitrogen is crucial to obtaining high yields of 2-quinolones. The best results are obtained using alkoxycarbonyl, p-tolylsulfonyl, and trifluoroacetyl substituents. The nitrogen substituent is lost during the course of the reaction resulting in the formation of N-unsubstituted 2-quinolones. A variety of internal alkynes, bearing alkyl, aryl, heteroaryl, hydroxyl, and alkoxyl substituents, are effective in this process. Electron-rich and electron-poor N-substituted o-iodoanilines, as well as heterocyclic analogues, can be employed as annulating agents.

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Electric Literature of 19493-44-8, Chemistry is the experimental science by definition. We want to make observations to prove hypothesis. For this purpose, we perform experiments in the lab. 19493-44-8, Name is 1-Chloroisoquinoline,introducing its new discovery.

Biphenyl-based diaminophosphine oxides as air-stable preligands for the nickel-catalyzed kumada-tamao-corriu coupling of deactivated aryl chlorides, fluorides, and tosylates

A cooperative couple: Cooperative bimetallic activation of C-F and C-O bonds gave rise to easy coupling with aryl fluorides and tosylates. Novel air- and moisture-stable diaminophosphine oxides derived from 1,1?-biphenyl-2, 2?-diamine proved to be versatile preligands for the nickel-catalyzed cross-coupling of aryl Grignard reagents with a variety of deactivated aryl chlorides, fluorides, and tosylates (see scheme). Copyright

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Application of 1125-80-0, Because a catalyst decreases the height of the energy barrier, its presence increases the reaction rates of both the forward and the reverse reactions by the same amount.1125-80-0, Name is 3-Methylisoquinoline, molecular formula is C10H9N. In a article£¬once mentioned of 1125-80-0

35Cl Nuclear Quadrupole Resonance Studies of Hydrogen Bonding in Solid Complexes of Chlorobenzoic Acids with Amines

35Cl nuclear quadrupole resonance studies of hydrogen-bonded adducts containing o-, m- and p-chlorobenzoic acid and 2,6-dichlorobenzoic acid have been carried out.Average frequencies are correlated with DeltapKa values in terms of the proton-transfer model.The results obtained for various proton donors are compared and discussed taking into account both intra and intermolecular effects.

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In homogeneous catalysis, the catalyst is in the same phase as the reactant. The number of collisions between reactants and catalyst is at a maximum.In a patent, 70810-24-1, name is 1,7-Dichloroisoquinoline, introducing its new discovery. Safety of 1,7-Dichloroisoquinoline

Design and synthesis of piperazinylpyridine derivatives as novel 5-HT 1A agonists/5-HT3 antagonists for the treatment of irritable bowel syndrome (IBS)

We have prepared a series of piperazinylpyridine derivatives for the treatment of irritable bowel syndrome (IBS). These compounds, which were designed by pharmacophore analysis, bind to both serotonin subtype 1A (5-HT 1A) and subtype 3 (5-HT3) receptors. The nitrogen atom of the isoquinoline, a methoxy group and piper-azine were essential to the pharmacophore for binding to these receptors. We also synthesized furo- and thienopyridine derivatives according to structure-activity relationship analyses. Compound 17c (TZB-20810) had high affinities to these receptors and exhibited 5-HT1A agonistic activity and 5-HT3 antagonistic activity concurrently, and is a promising drug for further development in the treatment of IBS.

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Electric Literature of 1125-80-0, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.1125-80-0, Name is 3-Methylisoquinoline, molecular formula is C10H9N. In a Article£¬once mentioned of 1125-80-0

Gold Particles Supported on Amino-Functionalized Silica Catalyze Transfer Hydrogenation of N-Heterocyclic Compounds

In this work we demonstrate that exceptionally small gold particles (d=0.6¡À0.2 nm) supported on amino-functionalized mesoporous silicate SBA-15 are highly active in transfer hydrogenation of structurally diverse unsaturated N-heterocyclic compounds. The heterocyclic ring is reduced selectively. The gold particles aggregate to a diameter of 4?5 nm in the presence of formic acid/triethylamine (hydrogen donor) during the first catalytic run. In subsequent cycles the nanoparticles maintain their size, yielding a very stable catalytic system that was recycled more than five times. In contrast, analogous SBA catalysts featuring larger (?5?35 nm) gold particles are not active. Excess formic acid also leads to the formation of formamide derivatives of the products of hydrogenation, which can be deformylated quantitatively. Fifteen structurally different substrates, including the scaffolds of quinoline, isoquinoline, quinoxaline, acridine, phenanthroline, quinazoline, and phenanthridine are hydrogenated and deformylated to give the amine products in >90% overall yield. Deuterium labeling experiments indicate that 1,2-addition with subsequent disproportionation of the formed intermediate is the preferred reaction path over the 1,4-addition one, suggesting the participation of a gold hydride species. (Figure presented.).

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In homogeneous catalysis, the catalyst is in the same phase as the reactant. The number of collisions between reactants and catalyst is at a maximum.In a patent, 3482-14-2, name is Isoquinolin-8-ol, introducing its new discovery. category: Isoquinolines

Organic Compound having hole injecting characteristic and Organic Light Emitting Device and Display Device using the same

The present invention refers to, formula 1 a: Formula 1 The hole injection properties represented by organic-compounds and the organic light emitting device using the same is provided to device and display, according to the present invention of organic light-emitting device having. and a bottom part of the active. (by machine translation)

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Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments. SDS of cas: 214045-84-8. Introducing a new discovery about 214045-84-8, Name is 6-Fluoro-3,4-dihydroisoquinolin-1(2H)-one

COMPOUNDS

A compound of formula (I): or its salts or pharmaceutically acceptable derivatives thereof wherein; A represents a chemical moiety with the general formula (II): X is selected from a group consisting of CH2 , C(=O), CH(Rs), C(R5 )(R6 ) or C(R5 ) (R6 )CH2 ; R1 is selected from the group consisting of optionally substituted arylalkyl, and optionally substituted heteroarylalkyl; R2 is selected from the group consisting of optionally substituted aryl or optionally substituted heteroaryl or NR7 Rs; R3 is selected from the group consisting of hydrogen, halogen, hydroxyl, alkoxy, aryloxy, optionally substituted alkyl, optionally substituted amino, optionally substituted amino sulfonyl or nitrile; R4 is selected from the group consisting of hydrogen, optionally substituted alkyl, optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, optionally substituted acyl, optionally substituted sulfonyl, optionally substituted sulfamoyl, optionally substituted aryl, optionally substituted arylalkyl, and optionally substituted heteroaryl; R5 and R6 for each occurrence is optionally substituted alkyl; R7 and R8 are the same or different and each represents hydrogen, optionally substituted alkyl, optionally substituted cycloalkyl, optionally substituted arylalkyl, optionally substituted aryl or optionally substituted heteroaryl; n = 1 or 2 is provided. Pharmaceutical compositions comprising the compounds are also provided. The compounds are useful in treating various conditions including arrhythmia

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In heterogeneous catalysis, the catalyst is in a different phase from the reactants. category: isoquinoline, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 1532-72-5, name is Isoquinoline N-Oxide. In an article£¬Which mentioned a new discovery about 1532-72-5

Direct regioselective phosphonation of heteroaryl N-oxides with H-phosphonates under metal and external oxidant free conditions

A direct C-H/P-H functionalization of heteroaryl N-oxides with H-phosphonates is described. A wide variety of heteroaryl phosphonates were obtained in up to 92% yield in a chemo- and regioselective manner, under oxidant and metal free conditions. This procedure features practicality, high efficiency, environmental friendliness and atom economy.

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Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments. Computed Properties of C10H7NO2. Introducing a new discovery about 6624-49-3, Name is Isoquinoline-3-carboxylic acid

Chemistry of ecteinascidins. Part 2. Preparation of 6?-O-acyl derivatives of stable ecteinascidin and evaluation of cytotoxicity

A large amount of stable ecteinascidin 770 (1b) was isolated from the Thai tunicate, Ecteinascidia thurstoni, which was pretreated with potassium cyanide in buffer solution (pH 7), along with a minor metabolite, ecteinascidin 786 (1c). A number of 6?-O-acyl derivatives 3-19 and three diacetyl derivatives 2a-c of the stable 1b were prepared and evaluated for activity against human tumor cell lines HCT116, QG56, and DU145. Nitrogen-containing heterocyclic ester derivatives such as 12, 13, and 16-19 showed similar in vitro cytotoxicity to 1b, whereas the other derivatives were less cytotoxic than 1b. Furthermore, we discovered that the N-indole-3-carbonyl derivative of ecteinascidin 770 (22) has higher cytotoxicity than 1b.

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