Category: 1121-89-7

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Free-radical carbo-alkenylation of enamides and ene-carbamates

The addition of xanthates and vinyldisulfones across the double bond of enamides and ene-carbamates provides access to the corresponding three-component adducts in good to excellent yields with a high level of diastereocontrol in cyclic systems. This strategy illustrates a complementary reactivity for these versatile olefins and extends their scope of application.

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Piperidine – Wikipedia,
Piperidine | C5H1315N – PubChem

 

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Potential squalenepoxidase-inhibitors: Conformatively fixed butenafine analogues with spirane structure

Three types of conformatively fixed analogues to butenafine I, II, and III were synthesized via spiro annelation to five- and six-membered cyclic imides or lactams, respectively. Subsequent alkylation of the nitrogen and reduction of the carbonyl groups led to the desired spiro amines, which were isolated and characterized as hydrochlorides.

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Piperidine – Wikipedia,
Piperidine | C5H1197N – PubChem

 

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PROCESS FOR THE PREPARATION OF IMIDES AND DERIVATIVES THEREOF AND USES

A process for the preparation of imides and also the uses thereof, especially as intermediates for the preparation of solvents, in particular of diester solvents, is described. Further described is a process for preparing cyclic imides and derivatives thereof, especially the corresponding carboxylic acids.

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Piperidine – Wikipedia,
Piperidine | C5H1525N – PubChem

 

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Metabolomics: A way forward for crop improvement

Metabolomics is an emerging branch of ?omics? and it involves identification and quantification of metabolites and chemical footprints of cellular regulatory processes in different biological species. The metabolome is the total metabolite pool in an organism, which can be measured to characterize genetic or environmental variations. Metabolomics plays a significant role in exploring environment?gene interactions, mutant characterization, phenotyping, identification of biomarkers, and drug discovery. Metabolomics is a promising approach to decipher various metabolic networks that are linked with biotic and abiotic stress tolerance in plants. In this context, metabolomics-assisted breeding enables efficient screening for yield and stress tolerance of crops at the metabolic level. Advanced metabolomics analytical tools, like non-destructive nuclear magnetic resonance spectroscopy (NMR), liquid chromatography mass-spectroscopy (LC-MS), gas chromatography-mass spectrometry (GC-MS), high performance liquid chromatography (HPLC), and direct flow injection (DFI) mass spectrometry, have sped up metabolic profiling. Presently, integrating metabolomics with post-genomics tools has enabled efficient dissection of genetic and phenotypic association in crop plants. This review provides insight into the state-of-the-art plant metabolomics tools for crop improvement. Here, we describe the workflow of plant metabolomics research focusing on the elucidation of biotic and abiotic stress tolerance mechanisms in plants. Furthermore, the potential of metabolomics-assisted breeding for crop improvement and its future applications in speed breeding are also discussed. Mention has also been made of possible bottlenecks and future prospects of plant metabolomics.

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Piperidine – Wikipedia,
Piperidine | C5H1389N – PubChem

 

A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, HPLC of Formula: C5H7NO2, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 1121-89-7, Name is Piperidine-2,6-dione, molecular formula is C5H7NO2. In a Article, authors is Schier, Ernst-Juergen£¬once mentioned of 1121-89-7

Metal Carbonyl Complexes with Anions of Cyclic Imides

A large series of metal carbonyl complexes with N-bonded anions of various cyclic imidates (X(-)) has been prepared: (-), (-), (-) (M = Cr, Mo, W), Re(CO)5X, (-), (-).Also pyromellitdiimidate and cyclopentanebis(dicarboximidate) bridged complexes <(OC)5MXM(CO)5>(2-) (M = Cr, Mo, W) and the dicyanamide complex (-) have been obtained.Reactions at the coordinated imidate ligands and the spectroscopic data of the complexes are reported. – Keywords: Chromium, Molybdenum, Tungsten, Manganese Carbonyls, Anions of Cyclic Imides as Ligands

Enzymes are biological catalysts that produce large increases in reaction rates and tend to be specific for certain reactants and products. I hope my blog about is helpful to your research. HPLC of Formula: C5H7NO2

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Piperidine | C5H1547N – PubChem

 

A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, COA of Formula: C5H7NO2, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 1121-89-7, Name is Piperidine-2,6-dione, molecular formula is C5H7NO2. In a Patent, authors is £¬once mentioned of 1121-89-7

HETEROCYCLIC COMPOUND HAVING HIV INTEGRASE INHIBITORY ACTIVITY

A heterocyclic compound of the formula (I): wherein B1 is -C(R2)= or -N=; R1′ is H, etc.; one of R1 and R2 is -Z1-Z2-Z3-R5 wherein Z1 and Z3 are independently single bond, optionally substituted alkylene, etc.; Z2 is single bond, optionally substituted alkylene, etc.; R5 is optionally substituted aryl, optionally substituted heteroaryl, etc., and the other of R1 and R2 is H; -A1- is -C(-Y)=C(-RA)-C(-R3)=C(-R4)-, etc. wherein Y is OH, etc.; RA is -COR7 wherein R7 is OH, etc.; one of R3 and R4 is carboxy, etc., and the other of R1 and R2 is H, etc, a prodrug thereof, a pharmaceutically acceptable salt thereof, and a solvate thereof, having an antiviral activity, more particularly, an inhibitory activity against HIV integrase, and a pharmaceutical composition containing the same, especially an anti-HIV drug.

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Piperidine – Wikipedia,
Piperidine | C5H1549N – PubChem

 

Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels.In a patent£¬ Application In Synthesis of Piperidine-2,6-dione, Which mentioned a new discovery about 1121-89-7

The reaction of primary amines with N-(2-bromoethyl)glutarimide derivatives leads to N-(2-hydroxyethyl)iminoglutarimides in good yields. The possible mecanism is proposed.

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Piperidine – Wikipedia,
Piperidine | C5H1237N – PubChem

 

Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels.In a patent£¬ Formula: C5H7NO2, Which mentioned a new discovery about 1121-89-7

Investigation of solid-state transitions in linear and crosslinked amorphous polymers

This paper deals with the determination of the main characteristics and the assignment of the molecular motions leading to the solid-state transitions observed in amorphous polymers at temperatures lower than the glass-rubber transition. First, the specific features of these secondary transitions (beta, gamma, delta, …) are briefly described. Then, the behaviour of various polymer systems is analysed: poly(cycloalkyl methacrylates) and their intracycle motions, poly(ethylene rere-phthalate) and bisphenol A polycarbonate beta transition and the effect of small molecule antiplasticisers, aryl-alkyl polyamide transitions, the beta transition of poly(methyl methacrylate) and its maleimide as well as glutarimide random copolymers. Additionally linear polymers, aryl-aliphatic epoxy systems, with or without antiplasticisers, illustrate the case of crosslinked amorphous polymers. Whereas all the systems considered were investigated by dynamic mechanical measurements and 13C solid-state nuclear magnetic resonance experiments, some systems were also studied by other techniques such as dielectric relaxation and molecular modelling. Poly(methyl methacrylate) and bisphenol A polycarbonate constitute the best examples of the level of description of the molecular motions involved in the beta transition and, in particular, the nature and extent of the cooperativity which develops in the high-temperature part of the transition. This is achieved by combining all the experimental and modelling techniques presently available. Springer-Verlag Berlin Heidelberg 2005.

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Piperidine – Wikipedia,
Piperidine | C5H1205N – PubChem

 

Catalysts function by providing an alternate reaction mechanism that has a lower activation energy than would be found in the absence of the catalyst. In some cases, the catalyzed mechanism may include additional steps.In a article, 1121-89-7, molcular formula is C5H7NO2, introducing its new discovery. SDS of cas: 1121-89-7

Palladium-catalyzed Suzuki-Miyaura coupling of aryl esters

The Suzuki-Miyaura coupling is among the most important C-C bond-forming reactions available due to its reliability, chemoselectivity, and diversity. Aryl halides and pseudohalides such as iodides, bromides, and triflates are traditionally used as the electrophilic coupling partner. The expansion of the reaction scope to nontraditional electrophiles is an ongoing challenge to enable an even greater number of useful products to be made from simple starting materials. Herein, we present how an NHC-based Pd catalyst can enable Suzuki-Miyaura coupling where the C(acyl)-0 bond of aryl esters takes on the role of electrophile, allowing the synthesis of various ketone-containing products. This contrasts known reactions of similar esters that provide biaryls via nickel catalysis. The underlying cause of this mechanistic divergence is investigated by DFT calculations, and the robustness of esters compared to more electrophilic acylative coupling partners is analyzed.

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Piperidine – Wikipedia,
Piperidine | C5H1228N – PubChem

 

Electric Literature of 1121-89-7, A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 1121-89-7, Name is Piperidine-2,6-dione, molecular formula is C5H7NO2. In a Article£¬once mentioned of 1121-89-7

Computational studies on water-catalyzed mechanisms for stereoinversion of glutarimide intermediates formed from glutamic acid residues in aqueous phase

Aspartic acid (Asp) residues are prone to non-enzymatic stereoinversion, and Asp-residue stereoinversion is believed to be mediated via a succinimide (SI) intermediate. The stereoinverted Asp residues are believed to cause several age-related diseases. However, in peptides and proteins, few studies have reported the stereoinversion of glutamic acid (Glu) residues whose structures are similar to that of Asp. We previously presumed that Glu-residue stereoinversion proceeds via a glutarimide (GI) intermediate and showed that the calculated activation barriers of SI-and GI-intermediate stereoinversion are almost equivalent in the gas phase. In this study, we investigated the stereoinversion pathways of the l-GI intermediate in the aqueous phase using B3LYP density functional methods. The calculated activation barrier of l-GI-intermediate stereoinversion in the aqueous phase was approximately 36 kcal¡¤mol?1, which was much higher than that in the gas phase. Additionally, as this activation barrier exceeded that of Asp-residue stereoinversion, it is presumed that Glu-residue stereoinversion has a lower probability of proceeding under physiological conditions than Asp-residue stereoinversion.

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Piperidine – Wikipedia,
Piperidine | C5H1488N – PubChem