Category: 53562-86-0

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 Assembling molecular guidance systems for heterogeneous enantioselective catalysis, the main research direction is review mol guidance system heterogeneous enantioselective catalysis; copper enantioselective catalysis chiral modification surface review; tartaric acid alanine surface modification catalyst chirality review.SDS of cas: 53562-86-0.

A review, on chirally-modified metal catalysts as means of imposing asymmetry on a non-chiral substrate. Surface science studies on inducing enantioselectivity by R,R-tartaric acid and S-alanine at (Cu(110)) surface are described. The chirality induction is illustrated by the hydrogenation of methylacetoacetate over Ni surface modified with the chiral agents to produce R- or S-methyl-3-hydroxybutyrate.

Although many compounds look similar to this compound(53562-86-0)SDS of cas: 53562-86-0, numerous studies have shown that this compound(SMILES:C[C@H](O)CC(OC)=O), has unique advantages. If you want to know more about similar compounds, you can read my other articles.

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

Harada, Tadao; Imachi, Yoshimi; Tai, Akira; Izumi, Yoshiharu published the article 《Modification of nickel surface with optically active substrate: the method and mechanism》. Keywords: tartaric acid modification reduced nickel; enantioface differentiating nickel catalyst; stereochem reduction acetoacetate nickel catalyst; hydroxybutyrate; asym induction hydrogenation acetoacetate.They researched the compound: (S)-Methyl 3-hydroxybutanoate( cas:53562-86-0 ).Recommanded Product: (S)-Methyl 3-hydroxybutanoate. 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:53562-86-0) here.

The enantioface-differentiating ability (e.d.a.) of tartaric acid (I) modified reduced Ni catalysts, examined in the reduction of AcCH2CO2Me to MeCH(OH)CH2CO2Me, was strongly affected by the type of NiO used for catalyst preparation and the preparative treatment. Acidic and high temperature modification or acid-treatment of reduced Ni (HNi) before I modification improved to e.d.a. as these treatments removed the amorphous, nonstereodifferentiating, parts of the HNi.

Although many compounds look similar to this compound(53562-86-0)Recommanded Product: (S)-Methyl 3-hydroxybutanoate, numerous studies have shown that this compound(SMILES:C[C@H](O)CC(OC)=O), has unique advantages. If you want to know more about similar compounds, you can read my other articles.

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)-Methyl 3-hydroxybutanoate, is researched, Molecular C5H10O3, CAS is 53562-86-0, about Enantio-differentiating hydrogenation of methyl acetoacetate over modified Raney nickel catalysts prepared by two-step modifications.Computed Properties of C5H10O3.

Two-step modifications of Raney nickel were examined for the enantio-differentiating hydrogenation of Me acetoacetate. The combination of pre-modification with disodium tartrate and NaBr in water and in-situ modification with tartaric acid resulted in the highest optical yield (84%) of hydrogenation product. This modification process is greener [environmentally benign] process than conventional modification carried out under weakly acidic conditions, because this process generated almost no Ni2+ ions. The pre-modification with tartrate and NaBr preferentially eliminated Al3+ from Raney nickel surface.

Although many compounds look similar to this compound(53562-86-0)Computed Properties of C5H10O3, numerous studies have shown that this compound(SMILES:C[C@H](O)CC(OC)=O), has unique advantages. If you want to know more about similar compounds, you can read my other articles.

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

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: (S)-Methyl 3-hydroxybutanoate, is researched, Molecular C5H10O3, CAS is 53562-86-0, about Studies of the effects of the modification conditions on the hydrogenation rate for the enantio-differentiating hydrogenation of methyl acetoacetate over a tartaric acid-NaBr-modified nickel catalyst, the main research direction is nickel tartaric acid sodium bromide catalyst enantioselectivity hydrogenation acetoacetate.SDS of cas: 53562-86-0.

The effects of modification conditions on the hydrogenation rate and the enantio-differentiating ability (e.d.a.) for hydrogenation of Me acetoacetate were studied, of (R,R)-tartaric acid-NaBr-in-situ-modified Ni catalyst. Tartaric acid treatment led to increased hydrogenation rate, irresp. of the presence of auxiliary modifier, NaBr. In the presence of tartaric acid, NaBr has two roles, i.e., Na+ activates the enantio-differentiating sites through interaction with tartaric acid, and Br- deactivates both the enantio-differentiating sites and non-enantio-differentiating sites. The e.d.a. and the hydrogenation rate are determined by the combination of these effects of Na+ and Br-.

Compounds in my other articles are similar to this one((S)-Methyl 3-hydroxybutanoate)SDS of cas: 53562-86-0, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

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

Product Details of 53562-86-0. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: (S)-Methyl 3-hydroxybutanoate, is researched, Molecular C5H10O3, CAS is 53562-86-0, about Chiral biphenyl diphosphines for asymmetric catalysis: stereoelectronic design and industrial perspectives. Author is Jeulin, Severine; De Paule, Sebastien Duprat; Ratovelomanana-Vidal, Virginie; Genet, Jean-Pierre; Champion, Nicolas; Dellis, Philippe.

Both enantiomers of the chiral diphosphines I (SYNPHOS) and II (DIFLUORPHOS) are prepared on multigram scales; the electronic and steric characteristics of I and II and of rhodium complexes derived from them are determined, compared with previous diphosphine catalysts, and correlated with their activities and enantioselectivities in the hydrogenation of ketones and olefins. I and II are prepared in five steps from 6-bromo-2,3-dihydro-1,4-benzodioxane and 5-bromo-2,2-difluorobenzodioxole, resp.; lithium-metal exchange and addition to a phosphoryl or phosphinyl chloride followed by oxidation to yield phosphine oxides, regioselective lithiation and iodination, Ullman coupling of the aryl iodides, resolution (either by acid-base resolution with di-O-benzoyl-tartaric acid or by chiral HPLC), and reduction of the phosphine oxides yields I and II in 38% and 33% overall yield, resp. The bite angles of I and II are compared to those of other common diphosphine ligands such as BINAP and MeO-BIPHEP. The structure of diastereomeric chlorohydridoruthenium complexes of (S)-II with Me acetoacetate is determined The C-O stretching frequencies of chloro(carbonyl)rhodium diphosphine complexes containing I, II, BINAP, and MeO-BIPHEP are determined as a measure of the electronic demands of the diphosphine ligands. β-Keto ester, α-keto ester, 1,3-diketone, ketone, and olefin substrates are hydrogenated in the presence of nonracemic I, II, BINAP, and MeO-BIPHEP and bis(η3-methallyl)(η4-1,5-cyclooctadienyl)ruthenium; the enantioselectivities are correlated with the steric and electronic properties of the ligands. The stereoelectronic features of the ligand and the substrate deeply influence the enantioselectivities obtained in asym. hydrogenation; whereas the steric and electronic factors for I (as in other diphosphines) correlate well, the bite angle of II does not correlate to its electronic effects in asym. hydrogenation reactions, leading to complementary hydrogenation selectivities for ligands I and II.

Compounds in my other articles are similar to this one((S)-Methyl 3-hydroxybutanoate)Product Details of 53562-86-0, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

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

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: (S)-Methyl 3-hydroxybutanoate( cas:53562-86-0 ) is researched.COA of Formula: C5H10O3.Young, C. S.; Ward, O. P. published the article 《Studies of the reductive biotransformation of selected carbonyl compounds by whole cells and extracts of Baker’s yeast, Saccharomyces cerevisiae》 about this compound( cas:53562-86-0 ) in Biotechnology and Bioengineering. Keywords: carbonyl compound reduction bakers yeast; Saccharomyces citronellal benzoylformate acetoacetate reduction. Let’s learn more about this compound (cas:53562-86-0).

The progress of reductive biotransformations of a variety of carbonyl compounds by whole cells of baker’s yeast was monitored with time. Biotransformation rates ranged from 0.11 to 112.12 mg product formed per g dry yeast per h. While rapid biotransformations of citronellal and Et benzoylformate were observed, complete conversion of substrate to product did not occur. Reductive conversions of ethyl- and methyl-acetoacetate went to completion in 6 and 12 h resp. Et mandelate was produced stereoselectively, favoring the (R)-stereoisomer and ethyl- and methyl-3-hydroxybutyrate were produced with (S)-enantiospecificity. Yeast crude extract and resuspended pellet fractions converted citronellal to citronellol in the presence of NAD(P)H. Et benzoylformate and methyl- and ethyl-acetoacetate were preferentially reduced by yeast crude extract as compared to resuspended pellet and, in the case of the former two substrates, the reaction manifested a preference for NADPH over NADH.

Compounds in my other articles are similar to this one((S)-Methyl 3-hydroxybutanoate)COA of Formula: C5H10O3, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

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

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.Seebach, Dieter; Zueger, Max researched the compound: (S)-Methyl 3-hydroxybutanoate( cas:53562-86-0 ).Quality Control of (S)-Methyl 3-hydroxybutanoate.They published the article 《Depolymerization of poly[(R)-3-hydroxy-butanoate](PHB)》 about this compound( cas:53562-86-0 ) in Helvetica Chimica Acta. Keywords: depolymerization poly hydroxybutanoate; alkyl hydroxybutanoate enantiomeric. We’ll tell you more about this compound (cas:53562-86-0).

Enantiomerically pure Me, Et, Bu, or 2-methoxyethyl (R)-3-hydroxybutanoates were prepared in 75-90% yields by depolymerization of the title compound, or materials containing it, at 80-160° in MeOH, EtOH, BuOH, or MeOCH2CH2OH with or without cosolvent (ClCH2)2 in the presence of either H2SO4 or (EtO)4Ti catalyst. (S)-3-Hydroxybutanoates were also obtained by yeast reduction of acetoacetates; thus 3-hydroxybutyric acid derivatives are among those useful synthons available in both enantiomeric forms.

Although many compounds look similar to this compound(53562-86-0)Quality Control of (S)-Methyl 3-hydroxybutanoate, numerous studies have shown that this compound(SMILES:C[C@H](O)CC(OC)=O), has unique advantages. If you want to know more about similar compounds, you can read my other articles.

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 First total synthesis of macrosphelides C and F, published in 2001-04-09, which mentions a compound: 53562-86-0, Name is (S)-Methyl 3-hydroxybutanoate, Molecular C5H10O3, Category: piperazines.

Macrosphelides C and F were synthesized by lactonization of 14-oxo seco acids at the O(10)-C(11) bond followed by reduction and Mitsunobu inversion of the resulting hydroxyl group. The seco acids were prepared from the corresponding furans by furan ring-opening with NBS followed by further oxidation of the 4-oxo-2-alkenals with NaClO2.

Although many compounds look similar to this compound(53562-86-0)Category: piperazines, numerous studies have shown that this compound(SMILES:C[C@H](O)CC(OC)=O), has unique advantages. If you want to know more about similar compounds, you can read my other articles.

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

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Concise Asymmetric Syntheses of Radicicol and Monocillin I》. Authors are Garbaccio, Robert M.; Stachel, Shawn J.; Baeschlin, Daniel K.; Danishefsky, Samuel J..The article about the compound:(S)-Methyl 3-hydroxybutanoatecas:53562-86-0,SMILESS:C[C@H](O)CC(OC)=O).Safety of (S)-Methyl 3-hydroxybutanoate. Through the article, more information about this compound (cas:53562-86-0) is conveyed.

Radicicol (I) exhibits potent anticancer properties in vitro, which are likely to be mediated through its high affinity (20 nM) for the mol. chaperone Hsp90. Recently, we reported the results of a synthetic program targeting I and monocillin I (II), highlighted by the application of ring-closing metathesis to macrolide formation. These efforts resulted in a highly convergent synthesis of radicicol di-Me ether but failed in the removal of the two aryl Me ethers. Simple exchange of these Me ethers with more labile functionalities disabled a key esterification in the initial route. Through extended experimentation, a successful route to both natural products was secured, along with some intriguing results that emphasize the implications of this design on a broad range of fused benzoaliph. targets, including analogs of these natural products.

Although many compounds look similar to this compound(53562-86-0)Safety of (S)-Methyl 3-hydroxybutanoate, numerous studies have shown that this compound(SMILES:C[C@H](O)CC(OC)=O), has unique advantages. If you want to know more about similar compounds, you can read my other articles.

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, Chemistry – A European Journal called Chiral 1,2-bis(phosphetano)benzenes: preparation and use in the Ru-catalyzed hydrogenations of carbonyl derivatives, Author is Marinetti, Angela; Genet, Jean-Pierre; Jus, Sebastien; Blanc, Delphine; Ratovelomanana-Vidal, Virginie, the main research direction is phosphetanobenzene preparation chiral ligand stereoselective hydrogenation carbonyl; alc stereoselective preparation phosphetanobenzene chiral ligand.COA of Formula: C5H10O3.

Chiral 1,2-bis(phosphetano)benzenes are readily prepared from accessible, optically pure 1,3-diol cyclic sulfates. Their ruthenium complexes catalyze the enantioselective hydrogenations of functionalized carbonyls with moderate-to-high enantiomeric excesses. High levels of diastereo- and enantioselectivity are achieved, especially in the hydrogenation of β-diketones to the corresponding anti-1,3-diols.

Compounds in my other articles are similar to this one((S)-Methyl 3-hydroxybutanoate)COA of Formula: C5H10O3, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

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