Category: 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.Noyori, Ryoji; Ohkuma, Takeshi; Kitamura, Masato; Takaya, Hidemasa; Sayo, Noboru; Kumobayashi, Hidenori; Akutagawa, Susumu researched the compound: (S)-Methyl 3-hydroxybutanoate( cas:53562-86-0 ).Quality Control of (S)-Methyl 3-hydroxybutanoate.They published the article 《Asymmetric hydrogenation of β-keto carboxylic esters. A practical, purely chemical access to β-hydroxy esters in high enantiomeric purity》 about this compound( cas:53562-86-0 ) in Journal of the American Chemical Society. Keywords: exo ester asym hydrogenation ruthenium. We’ll tell you more about this compound (cas:53562-86-0).

Q = 2,2′-bis(diphenylphosphino)-1,1′-binaphthyl. Although Ru(OAc)2(R)-Q was ineffective as a catalyst for asym. hydrogenation of MeCOCH2CO2Me, RuX2 (X = Cl, Br, I) complexes with (R)- or (S)-Q were highly effective for RCOCH2CO2R1 (R, R1 = Me, Me; Me, Et; Me, Me2CH; Me, Me3C; Et, Me; Bu, Me; Me2CH, Me; Ph, Et) giving up to 99% yields with up to 99% enantiomeric excess.

The article 《Asymmetric hydrogenation of β-keto carboxylic esters. A practical, purely chemical access to β-hydroxy esters in high enantiomeric purity》 also mentions many details about this compound(53562-86-0)Quality Control of (S)-Methyl 3-hydroxybutanoate, you can pay attention to it, because details determine success or failure

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 Studies of co-modifier and carboxylic acid for the enantio-differentiating hydrogenation of 2-octanone over a tartaric acid in situ modified nickel catalyst, the main research direction is hydrogenation octanone tartarate nickel catalyst sodium pivalate.Product Details of 53562-86-0.

The effects of a co-modifier and carboxylic acid on the hydrogenation rate and the enantio-differentiating ability (e.d.a.) were studied for the hydrogenation of 2-octanone and Me acetoacetate over a tartaric acid modified reduced nickel catalyst. For the hydrogenation of 2-octanone, tartaric acid, pivalic acid, and Na+ were necessary for the appearance of the predominant e.d.a. Sodium pivalate, instead of the typical co-modifier, NaBr, was appropriate for the in situ modification of reduced nickel. The use of sodium pivalate resulted in a higher hydrogenation rate and e.d.a.

After consulting a lot of data, we found that this compound(53562-86-0)Product Details of 53562-86-0 can be used in many types of reactions. And in most cases, this compound has more advantages.

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 Purification and characterization of a novel keto ester reductase from Candida parapsilosis, published in 1992, which mentions a compound: 53562-86-0, Name is (S)-Methyl 3-hydroxybutanoate, Molecular C5H10O3, Related Products of 53562-86-0.

The purification and characterization of a novel NADH-dependent keto ester reductase from Candida parapsilosis is reported and the applicability of this enzyme in a coupled enzyme system with cofactor regeneration is demonstrated. The system catalyzes the stereospecific reduction of Me acetoacetate.

After consulting a lot of data, we found that this compound(53562-86-0)Related Products of 53562-86-0 can be used in many types of reactions. And in most cases, this compound has more advantages.

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

HPLC of Formula: 53562-86-0. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: (S)-Methyl 3-hydroxybutanoate, is researched, Molecular C5H10O3, CAS is 53562-86-0, about Cationic BINAP-Ru(II) Halide Complexes: Highly Efficient Catalysts for Stereoselective Asymmetric Hydrogenation of α- and β-Functionalized Ketones. Author is Mashima, Kazushi; Kusano, Koh-hei; Sato, Naomasa; Matsumura, Yoh-ichi; Nozaki, Kyoko; Kumobayashi, Hidenori; Sayo, Noboru; Hori, Yoji; Ishizaki, Takero.

Cationic ruthenium-BINAP complexes of the formula [RuX[(S)-BINAP](arene)]Y, where X = Cl, Br, I; Y = Cl, Br, I, BF4, B(C6H5)4; arene = benzene, p-cymene, Et benzoate, and their enantiomers have been prepared by the reaction of arene-ruthenium halide complexes with (S)-BINAP or (R)-BINAP [BINAP = 2,2′-bis(diphenylphosphino)-1,1′-binaphthyl]. Structures of the complexes were established by spectroscopy, conductivity, and a single-crystal x-ray anal. BINAP derivatives with various substituents at the para and meta positions of four Ph rings on phosphorus atoms and their cationic Ru(II) complexes have also been synthesized. These BINAP-Ru(II) complexes have been used as catalysts for the asym. hydrogenation of various unsaturated organic compounds such as α- and β-keto esters, allylic alcs., and α,β-unsaturated carboxylic acids in excellent diastereo- and/or enantioselectivities. Catalytic activities and stereoselectivities depend highly on reaction conditions such as solvent, temperature, and additives. Variation of halogen ligands bound to ruthenium atom and substituents on four Ph rings of BINAP also have exerted remarkable effects on the efficiency of the catalysis. Asym. hydrogenation of methyl(±)-2-(benzamidomethyl)-3-oxobutanoate catalyzed by the species derived from [RuI2(p-cymene)]2 and 3,5-(Me3C)2-BINAP afforded the corresponding syn-(2S,3R)-I in 98% de and 99% ee.

After consulting a lot of data, we found that this compound(53562-86-0)HPLC of Formula: 53562-86-0 can be used in many types of reactions. And in most cases, this compound has more advantages.

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

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Baker’s yeast reduction of β-keto esters in petrol, published in 1996-03-04, which mentions a compound: 53562-86-0, mainly applied to yeast reduction keto ester; hydroxy ester preparation, COA of Formula: C5H10O3.

A none fermenting suspension of Baker’s yeast in petrol containing a small amount of water reduces a variety of β-keto esters to the corresponding optically active β-hydroxy esters. E.g., RCOCH2CO2Et (R = Me, Et, Pr) gave (S)-RCH(OH)CH2CO2Et.

Although many compounds look similar to this compound(53562-86-0)COA of Formula: 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

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

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 Studies of co-modifier and carboxylic acid for the enantio-differentiating hydrogenation of 2-octanone over a tartaric acid in situ modified nickel catalyst, the main research direction is hydrogenation octanone tartarate nickel catalyst sodium pivalate.Product Details of 53562-86-0.

The effects of a co-modifier and carboxylic acid on the hydrogenation rate and the enantio-differentiating ability (e.d.a.) were studied for the hydrogenation of 2-octanone and Me acetoacetate over a tartaric acid modified reduced nickel catalyst. For the hydrogenation of 2-octanone, tartaric acid, pivalic acid, and Na+ were necessary for the appearance of the predominant e.d.a. Sodium pivalate, instead of the typical co-modifier, NaBr, was appropriate for the in situ modification of reduced nickel. The use of sodium pivalate resulted in a higher hydrogenation rate and e.d.a.

After consulting a lot of data, we found that this compound(53562-86-0)Product Details of 53562-86-0 can be used in many types of reactions. And in most cases, this compound has more advantages.

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 Purification and characterization of a novel keto ester reductase from Candida parapsilosis, published in 1992, which mentions a compound: 53562-86-0, Name is (S)-Methyl 3-hydroxybutanoate, Molecular C5H10O3, Related Products of 53562-86-0.

The purification and characterization of a novel NADH-dependent keto ester reductase from Candida parapsilosis is reported and the applicability of this enzyme in a coupled enzyme system with cofactor regeneration is demonstrated. The system catalyzes the stereospecific reduction of Me acetoacetate.

After consulting a lot of data, we found that this compound(53562-86-0)Related Products of 53562-86-0 can be used in many types of reactions. And in most cases, this compound has more advantages.

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

HPLC of Formula: 53562-86-0. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: (S)-Methyl 3-hydroxybutanoate, is researched, Molecular C5H10O3, CAS is 53562-86-0, about Cationic BINAP-Ru(II) Halide Complexes: Highly Efficient Catalysts for Stereoselective Asymmetric Hydrogenation of α- and β-Functionalized Ketones. Author is Mashima, Kazushi; Kusano, Koh-hei; Sato, Naomasa; Matsumura, Yoh-ichi; Nozaki, Kyoko; Kumobayashi, Hidenori; Sayo, Noboru; Hori, Yoji; Ishizaki, Takero.

Cationic ruthenium-BINAP complexes of the formula [RuX[(S)-BINAP](arene)]Y, where X = Cl, Br, I; Y = Cl, Br, I, BF4, B(C6H5)4; arene = benzene, p-cymene, Et benzoate, and their enantiomers have been prepared by the reaction of arene-ruthenium halide complexes with (S)-BINAP or (R)-BINAP [BINAP = 2,2′-bis(diphenylphosphino)-1,1′-binaphthyl]. Structures of the complexes were established by spectroscopy, conductivity, and a single-crystal x-ray anal. BINAP derivatives with various substituents at the para and meta positions of four Ph rings on phosphorus atoms and their cationic Ru(II) complexes have also been synthesized. These BINAP-Ru(II) complexes have been used as catalysts for the asym. hydrogenation of various unsaturated organic compounds such as α- and β-keto esters, allylic alcs., and α,β-unsaturated carboxylic acids in excellent diastereo- and/or enantioselectivities. Catalytic activities and stereoselectivities depend highly on reaction conditions such as solvent, temperature, and additives. Variation of halogen ligands bound to ruthenium atom and substituents on four Ph rings of BINAP also have exerted remarkable effects on the efficiency of the catalysis. Asym. hydrogenation of methyl(±)-2-(benzamidomethyl)-3-oxobutanoate catalyzed by the species derived from [RuI2(p-cymene)]2 and 3,5-(Me3C)2-BINAP afforded the corresponding syn-(2S,3R)-I in 98% de and 99% ee.

After consulting a lot of data, we found that this compound(53562-86-0)HPLC of Formula: 53562-86-0 can be used in many types of reactions. And in most cases, this compound has more advantages.

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

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Baker’s yeast reduction of β-keto esters in petrol, published in 1996-03-04, which mentions a compound: 53562-86-0, mainly applied to yeast reduction keto ester; hydroxy ester preparation, COA of Formula: C5H10O3.

A none fermenting suspension of Baker’s yeast in petrol containing a small amount of water reduces a variety of β-keto esters to the corresponding optically active β-hydroxy esters. E.g., RCOCH2CO2Et (R = Me, Et, Pr) gave (S)-RCH(OH)CH2CO2Et.

Although many compounds look similar to this compound(53562-86-0)COA of Formula: 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