30696-28-7

Upstream product

• 607-66-9 4-methyl-1,2-dihydroquinolin-2-one 
• 17698-13-4 N-Hydroxy-3-phenyl-butyramide 
• 201230-82-2 carbon monoxide 
• 52562-19-3 2-isopropenylaniline 
• 7446-70-0 aluminium trichloride 
• 90869-59-3 3-chloro-butyric acid anilide 
• 607-66-9 4-methylquinolin-2-ol 
• 10544-63-5 ethyl crotonate 
• 615-43-0 2-iodophenylamine 
• 15243-33-1 dodecacarbonyl-triangulo-triruthenium 
• 40073-96-9 N-[2-(1-methylethenyl)phenyl]formamide 
• 5570-18-3 2-aminophenylboronic acid 
• 623-70-1 ethyl (E)-crotonate 
• 6072-57-7 3-methylindanone 

Downstream Products

• 1247021-89-1 4-methyl-1-[2-(trifluoromethyl)benzyl]-3,4-dihydroquinolin-2(1H)-one 

Relevant academic research and scientific papers

HETEROCYCLIC COMPOUNDS AND USES THEREOF

Provided herein are novel heterocyclic compounds, for example, compounds having Formula I, I-P, II, lI-P, or III. Also provided herein are pharmaceutical compositions comprising the compounds and methods of using the same, for example, in inhibiting aldehyde dehydrogenases and/or for treating various cancers, cancer metastasis, type 2 diabetes, pulmonary arterial hypertension (PAH) or neointimal hyperplasia (NIH).

Room Temperature Benzofused Lactam Synthesis Enabled by Cobalt(III)-Catalyzed C(sp2)?H Amidation

Benzofused lactams, especially indolin-2-one and dihydroquinolin-2-one are popular structural motives in durgs and natural products. Herein, we developed a room temperature and robust synthesis of benzofused lactams through cobalt(III)-catalyzed C(sp

Small Molecule Compound for Enhancing Plant Stress Resistance

Disclosed are a small molecule compound for enhancing plant stress resistance, a preparation method therefor, and application thereof. Specifically, disclosed are compounds as shown in formula I, salts thereof, optical isomers thereof, racemes thereof, so

Schmidt reaction on substituted 1-indanones / N-alkylation: Synthesis of benzofused six-membered ring lactams and their evaluation as antimicrobial agents

Background: The presence of bicyclic lactams is reflected in various pharmaceuticals, natural products, agrochemicals and active components of various dyes. Nowadays, to see the increasing rate of antimicrobial resistance and high incidence of microbial infections, there is a strong need to develop novel antimicrobial agents. In this study, we synthesized some benzofused six membered ring lactams and their alkyl derivatives as a trial to obtain valuable precursors for the discovery of future an-timicrobial drugs. Methods: The substituted lactams 3,4-dihydro-2(1H)-quinolinones 3a-c and 3,4-dihydro-1(2H)-isoquinolinones 4a-c were synthesized by Schmidt reaction on indanones 2a-c which were obtained by Friedel-Crafts reaction on β-substituted α,β-unsaturated carboxylic acids 1a-c. Lactams 6 and 7 were obtained by N-alkylation on benzofused lactams 3a-c and 4a-c in good to excellent yields. Structures of all products were well characterized by the rigorous analysis of their IR,1H NMR,13C NMR, MS and elemental analysis. The in vitro antimicrobial activities of all the synthesized compounds 6 and 7 were determined against Gram-positive, Gram-negative bacteria and the fungal species Candida albi-cans using broth macrodilution method. Results: The Schmidt reaction of 3-methylindanone, 3-phenylindanone and 3,3-dimethylindanone using methane sulphonic acid was found to behave differently with respect to isolated yield as well as isomeric ratio of both lactams. Bacterial growth inhibition was observed with bicyclic lactam derivatives although their MIC values were higher than ampicillin. The significant inhibitory effects were shown by majority of compounds with MIC values 125-250 μg/ml. Antifungal activity of bicyclic lactam derivatives was observed against C. albicans. However, MICs values of all tested compounds were higher compared to standard antifungal agent miconazole. Conclusion: The four Schmidt experimental conditions were tried with the aim of achieving both 6-membered ring lactams in equal ratio and NaN3/MeSO3H was identified to fulfill our purpose. As evident by structure-activity relationship, the tested compounds have not resulted in superior antibacterial or anti-fungal compounds compared to standard antimicrobials. Hence, there is still a need to carry out further modifications in bicyclic lactams structure in order to more efficacious antimicrobial lead molecules.

Enabling CO Insertion into o-Nitrostyrenes beyond Reduction for Selective Access to Indolin-2-one and Dihydroquinolin-2-one Derivatives

The transition metal-catalyzed reductive cyclization of o-nitrostyrene in the presence of carbon monoxide (CO) has been developed to be a general synthetic route to an indole skeleton, wherein CO was used as a reductant to deoxidize nitroarene into nitrosoarene and/or nitrene with CO2 release, but the selective insertion of CO into the heterocyclic product with higher atom economy has not yet been realized. Herein, the Pd-catalyzed reduction of o-nitrostyrene by CO and its regioselective insertion were efficiently achieved to produce synthetically useful five- and six-membered benzo-fused lactams. Detailed investigations revealed that the chemoselectivity to indole or lactam was sensitive to the nature of the counteranions of Pd2+ precursors, whereas ligands significantly decided the carbonylative regioselectivity by different reaction pathways. Using PdCl2/PPh3/B(OH)3 (condition A), an olefin hydrocarboxylation was primarily initiated followed by partial reduction of the NO2 moiety and cyclization reaction to give N-hydroxyl indolin-2-one, which was further catalytically reduced by CO to afford the indolin-2-one as the final product with up to 95% yield. When the reaction was conducted under the Pd(TFA)2/BINAP/TsOH·H2O system (condition B), complete deoxygenation and carbonylation of the NO2 group occurred initially to yield the corresponding isocyanate followed by internal hydrocyclization to generate 3,4-dihydroquinolin-2-one with up to 98% yield. Importantly, the methodology could be efficiently applied in the synthesis of marketed drug Aripiprazole.

ORGANIC REACTIONS CARRIED OUT IN AQUEOUS SOLUTION IN THE PRESENCE OF A HYDROXYALKYL(ALKYL)CELLULOSE OR AN ALKYLCELLULOSE

The present invention relates to a method of carrying out an organic reaction in aqueous solution in the presence of a hydroxyalkyl(alkyl)cellulose or an alkylcellulose.

COMPOUNDS ACTIVE TOWARDS BROMODOMAINS

Disclosed are compounds towards bromodomains, pharmaceutical compositions containing the compounds and use of the compounds in therapy.

A Rhodium Nanoparticle-Lewis Acidic Ionic Liquid Catalyst for the Chemoselective Reduction of Heteroarenes

We describe a catalytic system composed of rhodium nanoparticles immobilized in a Lewis acidic ionic liquid. The combined system catalyzes the hydrogenation of quinolines, pyridines, benzofurans, and furan to access the corresponding heterocycles, important molecules present in fine chemicals, agrochemicals, and pharmaceuticals. The catalyst is highly selective, acting only on the heteroaromatic ring, and not interfering with other reducible functional groups.

Efficient one-pot synthesis of dihydroquinolinones in water at room temperature

A mild and robust one-pot protocol for the Rh-catalyzed 1,4-addition of 2-aminoboronic acid to α,β-unsaturated esters for the efficient synthesis of dihydroquinolinones has been developed. Furthermore the addition of a variety of substituted boronic acids to diverse α,β-unsaturated esters has been investigated. The reactions proceed in water containing catalytic amounts of the commercially available designer surfactant TPGS-750-M (via the formation of nanomicelles). This mild and easy to perform process proceeds at room temperature and tolerates a wide range of functionalities.

Imidazole derivatives as accelerators for ruthenium-catalyzed hydroesterification and hydrocarbamoylation of alkenes: Extensive ligand screening and mechanistic study

Imidazole derivatives are effective ligands for promoting the [Ru3(CO)12]-catalyzed hydroesterification of alkenes using formates. Extensive ligand screening was performed to identify 2-hydroxymethylated imidazole as the optimal ligand. Neither carbon monoxide gas nor a directing group was required, and the reaction also showed a wide substrate generality. The Ru-imidazole catalyst system also promoted intramolecular hydrocarbamoylation to afford lactams. A Ru-imidazole complex was unambiguously analyzed by X-ray crystallography, and it had a trinuclear structure derived from one [Ru3(CO)12] and two ligands. This complex was also successfully used for hydroesterification. The mechanism was examined in detail by using D- and 13C-labeled formates, indicating that the hydroesterification reaction proceeds by a decarbonylation-recarbonylation pathway. Effective imidazole assistant: [Ru3(CO)12]-catalyzed hydroesterification of alkenes by using formates is drastically accelerated by imidazole derivatives and exhibits a broad substrate scope for both alkenes and formates. The Ru-imidazole complex also catalyzes the intramolecular hydrocarbamoylation of alkenes.