30568-32-2Relevant academic research and scientific papers
Cobalt-catalyzed C[sbnd]H activation/C[sbnd]O formation: Synthesis of benzofuranones
Hajipour, Abdol R.,Khorsandi, Zahra
, (2019/11/26)
Herein, C[sbnd]H activation/C[sbnd]O formation reaction using novel cobalt catalytic system is reported. This reaction was given benzofuranones in moderate to excellent yields at room-temperature under air reaction conditions. The introduced strategy is efficient and low-cost method to synthesized benzofuranones from α,α-disubstitution acetic acid.
Dual Gold Catalysis: Synthesis of Fluorene Derivatives from Diynes
Bucher, Janina,Wurm, Thomas,Taschinski, Svenja,Sachs, Eleni,Ascough, David,Rudolph, Matthias,Rominger, Frank,Hashmi, A. Stephen K.
supporting information, p. 225 - 233 (2017/02/05)
1,5-Diyne systems bearing one terminal and one benzyl- or allyl-substituted alkyne attached to an aromatic backbone were converted in the presence of a gold catalyst. In a dual gold-catalyzed process, gold vinylidenes are formed that selectively undergo formal CH insertion into the C(sp2)–H bond of the offered unsaturated systems. If H atoms are present in the propargylic position, a subsequent isomerization to the aromatic system takes place leading to 9H-fluorene and 11H-benzo[b]fluorene derivatives as final products. In the case of a quaternary carbon in the propargylic position no further aromatization is observed and 10H-benzo[b]fluorene derivatives are obtained in high yield. (Figure presented.).
C-3 NOVEL TRITERPENONE WITH C-28 UREA DERIVATIVES AS HIV INHIBITORS
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Page/Page column 35, (2017/05/02)
The present invention relates to C-3 novel triterpenone with C-28 urea derivatives of formula (I); or pharmaceutically acceptable salts, pharmaceutically acceptable solvates, pharmaceutically acceptable hydrates, tautomers, stereoisomers, prodrugs, compositions or combination thereof, wherein R1, R2, R3, W, J and X are as defined herein. The present invention also relates to pharmaceutical compositions comprising compounds of formula (I) useful for the treatment of viral diseases and particularly HIV mediated diseases.
Synthesis of indolines by copper-mediated intramolecular aromatic C-H amination
Takamatsu, Kazutaka,Hirano, Koji,Satoh, Tetsuya,Miura, Masahiro
, p. 3242 - 3249 (2015/03/30)
A Cu(OAc)2-mediated intramolecular aromatic C-H amination proceeds with the aid of a picolinamide-type bidentate coordination group to deliver the corresponding indolines in good yields. The reaction occurs smoothly even under noble-metal-free conditions, and in some cases the use of an MnO2 terminal oxidant renders the process catalytic in Cu. The mild oxidation aptitude of Cu(OAc)2 and/or MnO2 accommodates the formation of electron-rich thiophene-and indole-fused indoline analogues. The Cu-based system can provide an effective approach to various indolines of potent interest in pharmaceutical and medicinal chemistry.
Palladium(II)-catalyzed directed trifluoromethylthiolation of unactivated C(sp3)-H bonds
Xiong, Heng-Ying,Besset, Tatiana,Cahard, Dominique,Pannecoucke, Xavier
, p. 4204 - 4212 (2015/05/05)
The synthesis of trifluoromethylthiolated aliphatic acid derivatives by Pd-catalyzed C(sp3)-H bond functionalization was developed. Using a bidentate directing group, the direct and selective introduction of a SCF3 moiety was possible on a range of amides with remarkable selectivity for C(sp3)-centers with an electrophilic SCF3 source and pivalic acid as an additive. This work constitutes an example of the unactivated C(sp3)-SCF3 bond formation by C-H activation offering a new access to relevant molecules.
NEW COMPOUNDS I/418
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Page/Page column 36-37, (2008/06/13)
There is provided compounds of formula I, wherein R1 to R7 have meanings given in the description, which are useful in the prophylaxis and in the treatment of arrhythmias, in particular atrial and ventricular arrhythmias.
HETEROCYCLICALLY SUBSTITUTED PENTANOL DERIVATIVES, METHOD FOR THE PRODUCTION THEREOF, AND USE THEREOF AS ANTI-INFLAMMATORY AGENTS
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Page/Page column 85-86, (2010/02/10)
The invention relates to pentanol derivatives of general formula (I), which are substituted by quinazoline, quinoxaline, cinnoline, indazole, phthalazine, naphthyridine, benzothiazole, dihydroindolone, dihydroisoindolone, benzimidazole, or indole, a method for the production thereof, and the use thereof as anti-inflammatory agents.
A convenient ring formation of 3-aryl-2,2-dialkyl-2,3-dihydrobenzofurans from phenols and 2-aryl-2,2-dialkylacetaldehydes
Yamashita, Makoto,Ono, Yujirou,Tawada, Hiroyuki
, p. 2843 - 2849 (2007/10/03)
A new and simple route for the preparation of 3-aryl-2,2-dialkyl-2,3- dihydrobenzofurans from phenols is described. In the presence of an acid catalyst phenols react with 2-aryl-2,2-dialkylacetaldehydes, prepared in good yield from 2-arylacetonitriles in 2 steps, to give 3-aryl-2,2-dialkyl-2,3- dihydrobenzofurans. Electron-donating substituents were required on the phenols in order to give 3-aryl-2,2-dialkyl-2,3-dihydrobenzofurans in good yield.
Process for preparing benzylnitriles
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, (2008/06/13)
A process is described for preparing an aromatic compound substituted by a tertiary nitrile of Formula (1.0.0): comprising treating a substituted aromatic compound of Formula (2.0.0): with a secondary nitrile of Formula (3.0.0): in the presence of a base having a pKanumerical value in the range of from about 17 to about 30, provided that the difference in pKanumerical values between said base and the corresponding tertiary nitrile of Formula (3.0.0) is no more than about 6; in an aprotic solvent having a dielectric constant (∈) of less than about 20; and at a reaction temperature in the range of from about 0° C. to about 120° C.; whereby there is formed said tertiary-nitrile-substituted aromatic compound final product of Formula (1.0.0); wherein the constituent parts W1, W2, W3, W4, and W5; and the substituent moieties R1, R2, R3, R4, R5, R6, and R7in the compounds of Formulas (1.0.0), (2.0.0) and (3.0.0) are selected from known organic groups and radicals as further detailed in the instant specification.
Methods and compositions for protecting animals and humans against attack and infestation by arthropod and helminth parasites
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, (2008/06/13)
The present invention relates to methods and compositions for treating animals and humans, and for controlling, preventing and protecting animals and humans from infestation and infection by arthropod and helminth parasites by administering or applying to
