Tag: M.W:100-200

Recommanded Product: 53562-86-0. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: (S)-Methyl 3-hydroxybutanoate, is researched, Molecular C5H10O3, CAS is 53562-86-0, about Catalytic behavior of silica-supported chitosan-platinum-iron complex for asymmetric hydrogenation of ketones.

Silica-supported chitosan-platinum-iron complex (SiO2-CS-Pt-Fe) is prepared by a simple method from silica, chitosan, H2PtCl6 · 6H2O and FeCl3. It has been found to be an effective chiral catalyst for the asym. hydrogenation of 2-hexanone to give (S)-(+)-2-hexanol and Me acetoacetate to give methyl-(S)-(+)-3-hydroxybutyrate in 85.4 and 75.0% optical yields, resp., if a proper content of Pt and Fe in SiO2-CS-Pt-Fe complex and appropriate reaction conditions are selected at room temperature and under 1 atm H2. The catalyst could be reused several times without any remarkable change in optical catalytic activity.

In some applications, this compound(53562-86-0)Recommanded Product: 53562-86-0 is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

Category: piperazines. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: (S)-1-(Dimethylamino)propan-2-ol, is researched, Molecular C5H13NO, CAS is 53636-17-2, about Discovery of 3-Alkoxyamino-5-(pyridin-2-ylamino)pyrazine-2-carbonitriles as Selective, Orally Bioavailable CHK1 Inhibitors. Author is Lainchbury, Michael; Matthews, Thomas P.; McHardy, Tatiana; Boxall, Kathy J.; Walton, Michael I.; Eve, Paul D.; Hayes, Angela; Valenti, Melanie R.; de Haven Brandon, Alexis K.; Box, Gary; Aherne, G. Wynne; Reader, John C.; Raynaud, Florence I.; Eccles, Suzanne A.; Garrett, Michelle D.; Collins, Ian.

Inhibitors of checkpoint kinase 1 (CHK1) are of current interest as potential antitumor agents, but the most advanced inhibitor series reported to date are not orally bioavailable. A novel series of potent and orally bioavailable 3-alkoxyamino-5-(pyridin-2-ylamino)pyrazine-2-carbonitrile CHK1 inhibitors was generated by hybridization of two lead scaffolds derived from fragment-based drug design and optimized for CHK1 potency and high selectivity using a cell-based assay cascade. Efficient in vivo pharmacokinetic assessment was used to identify compounds with prolonged exposure following oral dosing. The optimized compound I (CCT244747) was a potent and highly selective CHK1 inhibitor, which modulated the DNA damage response pathway in human tumor xenografts and showed antitumor activity in combination with genotoxic chemotherapies and as a single agent.

In some applications, this compound(53636-17-2)Category: piperazines is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 5-Fluoroindoline, is researched, Molecular C8H8FN, CAS is 2343-22-8, about Hydrogenation or Dehydrogenation of N-Containing Heterocycles Catalyzed by a Single Manganese Complex, the main research direction is manganese complex preparation; heterocycle manganese complex catalyst chemoselective hydrogenation.HPLC of Formula: 2343-22-8.

A highly chemoselective base-metal catalyzed hydrogenation and acceptorless dehydrogenation of N-heterocycles was presented. A well-defined Mn-complex was operated at low catalyst loading (as low as 2 mol%) and under mild reaction conditions. The described catalytic system tolerated various functional groups and the corresponding reduced heterocycles was obtained in high yields. Exptl. studies indicated a metal ligand cooperative catalysis mechanism.

In some applications, this compound(2343-22-8)HPLC of Formula: 2343-22-8 is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 53562-86-0, is researched, SMILESS is C[C@H](O)CC(OC)=O, Molecular C5H10O3Journal, Tetrahedron: Asymmetry called Baker’s yeast catalyzed asymmetric reduction in glycerol, Author is Wolfson, Adi; Dlugy, Christina; Tavor, Dorith; Blumenfeld, Janine; Shotland, Yoram, the main research direction is prochiral ketone reduction baker’s yeast glycerol; secondary alc asym preparation; baker’s yeast asym reduction catalyst; glycerol asym reduction solvent.Product Details of 53562-86-0.

Free and immobilized baker’s yeast were successfully employed in the asym. reduction of prochiral β-keto esters and ketones in glycerol. The activities with immobilized cells were always higher then with free cells while the enantioselectivity was very high with both catalysts. Using glycerol, a non-toxic, biodegradable and recyclable liquid, as an environmentally friendly solvent allowed easy separation of the product by simple extraction with di-Et ether.

In some applications, this compound(53562-86-0)Product Details of 53562-86-0 is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: (S)-1-(Dimethylamino)propan-2-ol, is researched, Molecular C5H13NO, CAS is 53636-17-2, about Electroreductive generation of (S)-(+)-N,N-dimethyl-2-(hydroxymethyl)-pyrrolidinium mercury compound for enantioselective synthesis of 2-amino-1-alkyl/aryl ethanols.COA of Formula: C5H13NO.

(S)-(+)-N,N-Dimethyl-2-(hydroxymethyl)-pyrrolidinium (DMHP+)-mercury compound mediated enantioselective reduction of aminomethyl alkyl/aryl ketones in dimethyl-formamide-2-propanol (9:1) was carried out using tetrabutylammonium tetrafluoroborate as a supporting electrolyte. The products viz. 2-amino-1-alkyl/aryl ethanols were obtained in good yield (68-92%) with 35-91% optical purity and were assigned (S)-configuration. The pinacol (racemic/meso) derivatives are also isolated as minor products (yield 5-20%) via dimerization of radical anion followed by protonation.

In some applications, this compound(53636-17-2)COA of Formula: C5H13NO is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 53562-86-0, is researched, Molecular C5H10O3, about Stereochemical control in microbial reduction. 4. Effect of cultivation conditions on the reduction of β-keto esters by methylotrophic yeasts, the main research direction is keto ester reduction yeast methanol.Synthetic Route of C5H10O3.

A Kroekera strain and Hansenula polymorpha were grown on glucose  [50-99-7] or MeOH [67-56-1]. The cells were recovered and used to reduce β-keto Me esters. Enantiomeric excess of the D-hydroxy isomer of the hydroxy ester product was always increased by prior culture of the yeast on MeOH. It is not clear if these results are caused by induction of alc. dehydrogenase.

In some applications, this compound(53562-86-0)Synthetic Route of C5H10O3 is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Enantiomeric separation of β-aminoalcohol using (R)-mandelato-Cu(II) complex., published in 1994, which mentions a compound: 53636-17-2, Name is (S)-1-(Dimethylamino)propan-2-ol, Molecular C5H13NO, Application of 53636-17-2.

Enantiomeric separation of β-aminoalcs. with primary or tertiary amino groups was achieved by HPLC using ODS as the stationary phase and an aqueous solution containing (R)-mandelato-Cu(II) as the mobile phase. OPA fluorescence derivatizing reaction or Ru complex chemiluminescence reaction was applied as the postcolumn detection method.

In some applications, this compound(53636-17-2)Application of 53636-17-2 is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

Application In Synthesis of 5-Fluoroindoline. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: 5-Fluoroindoline, is researched, Molecular C8H8FN, CAS is 2343-22-8, about One-Pot Parallel Synthesis of 5-(Dialkylamino)tetrazoles. Author is Savych, Olena; Kuchkovska, Yuliya O.; Bogolyubsky, Andrey V.; Konovets, Anzhelika I.; Gubina, Kateryna E.; Pipko, Sergey E.; Zhemera, Anton V.; Grishchenko, Alexander V.; Khomenko, Dmytro N.; Brovarets, Volodymyr S.; Doroschuk, Roman; Moroz, Yurii S.; Grygorenko, Oleksandr O..

Two protocols for the combinatorial synthesis of 5-(dialkylamino)tetrazoles were developed. The best success rate (67%) was shown by the method that used primary and secondary amines, 2,2,2-trifluoroethylthiocarbamate, and sodium azide as the starting reagents. The key steps included the formation of unsym. thiourea, subsequent alkylation with 1,3-propane sultone and cyclization with azide anion. A 559-member aminotetrazole library was synthesized by this approach; the overall readily accessible (REAL) chem. space covered by the method exceeded 7 million feasible compounds

When you point to this article, it is believed that you are also very interested in this compound(2343-22-8)Application In Synthesis of 5-Fluoroindoline and due to space limitations, I can only present the most important information.

Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

Delot, Marc; Carato, Pascal; Furman, Christophe; Lemoine, Amelie; Lebegue, Nicolas; Berthelot, Pascal; Yous, Said published the article 《Synthesis of 1,11-dihydro-2H-[1,3]oxazolo[4′,5′:5,6]indeno[1,2-b]quinolin-2-ones with potential topoisomerase I inhibitory activity》. Keywords: dihydrooxazolo indenoquinolinone Friedlander preparation antitumor.They researched the compound: 6-Acetylbenzo[d]oxazol-2(3H)-one( cas:54903-09-2 ).Category: piperazines. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:54903-09-2) here.

A series of 1,11-dihydro-2H-[1,3]oxazolo[4′,5′:5,6]indeno[1,2-b]quinolin-2-ones I (R1 = H, Me; R2 = H, Me, Ph, 4-Cl-Ph; R3 = H, MeO) were prepared by means of Friedlander condensations. The starting materials for the preparations were com. substituted 2-aminoacetophenones and various 5,6-dihydro-2H-indeno[5,6-d][1,3]oxazole-2,7(3H)-diones that were synthesized from 2(3H)-benzoxazolones or their N-Me analogs. Antitumor activity of the title compounds has been tested on DU145 human androgen-independent prostate cancer cells.

When you point to this article, it is believed that you are also very interested in this compound(54903-09-2)Category: piperazines and due to space limitations, I can only present the most important information.

Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

Application In Synthesis of 6-Acetylbenzo[d]oxazol-2(3H)-one. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: 6-Acetylbenzo[d]oxazol-2(3H)-one, is researched, Molecular C9H7NO3, CAS is 54903-09-2, about 6-Acyl benzoxazolinones. II. Preparation of some transformation products. Author is Bonte, Jean P.; Lesieur, Daniel; Lespagnol, Charles; Cazin, Jean C.; Cazin, Micheline.

Alcs. I (R = H, R1 = MeCHOH, EtCHOH, PhCHOH, PhCH2CHOH) were prepared in 85-90% yield by reducing I (R = H, R1 = Ac, EtCO, Bz, Ph-CH2CO) and had analgesic activity comparable to that of I (R = R1 = H). Alk. hydrolysis of I (R = H, Me; R1 = HCO, Ac, EtCO, Bz, PhCH2CO, 2-thenoyl) gave 2,4-HO(R1)C6H3NHR with loss of analgesic activity. Reaction of I (R = H, R1 = Ac) with R2CHO (R2 = Ph, p-ClC6H4, p-MeOC6H4, m-MeOC6-H4, 2,3,4-HO2C(MeO)2C6H2, PhCH:CH, 2-thienyl, p-O2NC6H4, m-O2NC6H4) gave I (R = H, R1 = R2CH:CHCO), which were reduced to I (R = H, R1 = R2CH2CH2CO), both with loss of analgesic activity.

When you point to this article, it is believed that you are also very interested in this compound(54903-09-2)Application In Synthesis of 6-Acetylbenzo[d]oxazol-2(3H)-one and due to space limitations, I can only present the most important information.

Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics