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Visible-light-driven cyanoalkylation of quinoxalinones using cyclobutanone oxime esters as the radical precursors

We have developed a versatile visible-light-driven cyanoalkylation of quinoxalinones under mild conditions. First, the cyanoalkyl radicals are generated from readily available cyclobutanone oxime esters under blue light irradiation. Then the generated radicals react with heterocycles such as quinoxalinones to give the final cyanoalkylation products. The protocol tolerates a wide range of functional groups. Our cyanoalkylation protocol does not need cyanide-based reagents and also does not need external oxidants.

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TRICYCLIC INHIBITORS OF 5-LIPOXYGENASE

Described herein are compounds and pharmaceutical compositions containing such compounds, which inhibit the activity of 5-lipoxygenase (5-LO). Also described herein are methods of using such 5-LO inhibitors, alone and in combination with other compounds, for treating respiratory, cardiovascular, and other leukotriene-dependent or leukotriene mediated conditions, diseases, or disorders.

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The relationship between chemical structure and gelation ability was examined for a series of nine Hg-containing compounds. Both solid-state properties (dissolution enthalpies/entropies and packing structure) and gel properties (strength, morphology, cation selectivity, and anion tolerance) were examined. Overall, the results reveal a complex relationship between chemical structure and properties. The remediation potential of these Hg-triggered gelations was also investigated, revealing that >98% of the Hg2+ in water can be removed through gel formation.

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Related Products of 55687-34-8, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.55687-34-8, Name is 6-Bromoquinoxalin-2(1H)-one, molecular formula is C8H5BrN2O. In a Article，once mentioned of 55687-34-8

A FACILE SYNTHESIS OF NOVEL TRICYCLIC COMPOUNDS, TETRAZOLOQUINOXALINES AND 1,2,4-TRIAZOLOQUINOXALINES

Novel 5-methyltetrazolo<1,5-a>quinoxalin-4-ones (5) and 5-methyl-1,2,4-triazolo<4,3-a>quinoxalin-4-ones (7) could be synthesized from 1-methyl-3-chloroquinoxalin-2-ones (3) and 1-methyl-3-hydrazinoquinoxalin-2-ones (6), respectively.Further extensive study was carried out to synthesize 4- or 7- substituted and 4,7-disubstituted tetrazolo<1,5-a>quinoxalines (10) and 1,2,4-triazolo<4,3-a>quinoxalines (12).

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One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, Safety of 6-Bromoquinoxalin-2(1H)-one, such as the rate of change in the concentration of reactants or products with time.In a article, mentioned the application of 55687-34-8, Name is 6-Bromoquinoxalin-2(1H)-one, molecular formula is C8H5BrN2O

Synthetic method of 3- thioether-based quinoxalinone compound (by machine translation)

The method comprises the following steps of :(1) 3 – reacting the reactants in a quartz, tube at room temperature at room temperature in 0.5 the following steps, 1: #1.5 STR3 N – ;(2), and (5 – 9 washing) three times with 20 – 36 ethyl, acetate/petroleum ether ;(3), 10 – 30, 20 – 30, 10 – 20 ;(4),(5), =1:5 – 10. (by machine translation)

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In heterogeneous catalysis, the catalyst is in a different phase from the reactants. Product Details of 55687-34-8, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 55687-34-8, name is 6-Bromoquinoxalin-2(1H)-one. In an article£¬Which mentioned a new discovery about 55687-34-8

Direct C-H sulfenylation of quinoxalinones with thiols under visible-light-induced photocatalyst-free conditions

A photocatalyst-free visible-light-promoted sulfenylation of quinoxalinones with thiols via cross-dehydrogenative coupling was developed. This protocol allowed the direct formation of diverse 3-sulfenylquinoxalin-2(1H)-ones under metal- and catalyst-free conditions and using air (O2) as an oxidant. Furthermore, a range of readily accessible thiols and quinoxalin-2(1H)-ones was applied in this coupling, resulting in an attractive process of accessing 3-substituted quinoxalinones.

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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, 55687-34-8, name is 6-Bromoquinoxalin-2(1H)-one, introducing its new discovery. Computed Properties of C8H5BrN2O

Electrochemically C-H/S-H Oxidative Cross-Coupling between Quinoxalin-2(1 H)-ones and Thiols for the Synthesis of 3-Thioquinoxalinones

An electrochemical method for the C(sp2)-H thioetherification of quinoxalin-2(1H)-ones with primary, secondary, and tertiary thiols has been reported. Various quinoxalin-2(1H)-ones underwent this thioetherification smoothly under metal- A nd chemical oxidant-free conditions, affording 3-alkylthiol-substituted quinoxalin-2(1H)-ones in moderate to good yields.

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Construction of C(sp2)?C(sp3) Bond between Quinoxalin-2(1H)-ones and N-Hydroxyphthalimide Esters via Photocatalytic Decarboxylative Coupling

A novel visible-light-driven decarboxylative coupling of alkyl N-hydroxyphthalimide esters (NHP esters) with quinoxalin-2(1H)-ones has been developed. This C(sp2)?C(sp3) bond-forming transformation exhibits excellent substrate generality with respect to both the coupling partners. Of note, a series of 3-primary alkyl-substituted quinoxalin-2(1H)-ones that were difficult to synthesize by previous methods could be obtained in moderate to excellent yields. Additionally, the mild conditions, easy availability of substrates, wide functional group tolerance and operational simplicity make this protocol practical in the synthesis of 3-alkylated quinoxalin-2(1H)-ones.

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HEPATITIS C VIRUS INHIBITORS

The present invention relates to compounds of the formula (I) and pharmaceutically acceptable salts thereof, to compositions containing such compounds and to the use of such compounds as inhibitors of HCV replication.

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SUBSTITUTED BENZOTRIAZINES AND QUINOXALINES AS INHIBITORS OF P7OS6 KINASE

The invention provides compounds of the formula (1): or salts or tautomers thereof; wherein X1 is N or N+(O ); X2 is N or CH; Q is a C1 -3 alkylene group; R1 is selected from hydrogen, C1 -4 hydrocarbyl and hydroxy-C2-4 hydrocarbyl; R2, R3 and R4 are the same or different and each is selected from hydrogen, fluorine, chlorine and methyl; Arl is an optionally substituted monocyclic 5 or 6-membered aryl or heteroaryl ring containing 0, 1 or 2 heteroatom ring members selected from O, N and S, or a naphthyl ring and Ar2 is an optionally substituted monocyclic 5 or 6-membered heteroaryl ring containing 1, 2 or 3 heteroatom ring members selected from O, N and S. The compounds of formula (1) are inhibitors of p70S6 kinase and are useful in the treatment of proliferative diseases

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