Ethyl 4-chloro-3-oxobutanoate

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August undefined, 2024

WebEthyl 4-Chloroacetoacetate or Ethyl 4-chloro-3-oxobutanoate or 4-Chloroacetoacetic acid: CAS Number: 638-07-3, EINECS EC Number: 211-317-0, Molecular Formula: C6H9ClO3 or ClCH2COCH2CO2C2H5, Molecular Weight: 164.59, HS Code ---** How big is your requirement or how small We serve it all. WebThe asymmetric reduction of ethyl 4-chloro-3-oxobutanoate (COBE) to ethyl (R)-4-chloro-3-hydroxybutanoate [(R)-CHBE] using Escherichia coli cells, which coexpress …

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Webdrogenase gene, were mixed in an appropriate ratio and used for the asymmetric reduction of ethyl 4-chloro-3-oxobutanoate to ethyl (R)-4-chloro-3-hydroxybutanoate. The former strain acted as catalyst WebJun 1, 2008 · Asymmetric Reduction of Ethyl 4-Chloro-3-oxobutanoate to Ethyl (S)-4-Chloro-3-hydroxybutanoate Catalyzed by Aureobasidium pullulans in an Aqueous/Ionic Liquid Biphase System - ScienceDirect Chinese Journal of Catalysis Volume 29, Issue 6, June 2008, Pages 577-582 RESEARCH PAPER cisco smartnet offers

Ethyl 4-chloroacetoacetate C6H9ClO3 - PubChem

WebEthyl acetoacetic acid is a building block in organic synthesis since the protons alpha to carbonyl groups are acidic, and the resulting carbanion undergoes nucleophilic substitution. Ethyl acetoacetate is often used in the acetoacetic ester synthesis similar to diethyl malonate in the malonic ester synthesis or the Knoevenagel condensation. WebBuy Ethyl 4-((tert-butoxycarbonyl)amino)-3-oxobutanoate (CAS No. 67706-68-7) from Smolecule. Molecular Formula: C11H19NO5. ... Ethyl 4-((tert-butoxycarbonyl)amino)-3-oxobutanoate. This product is not intended for human or veterinary use. For research use only. Catalog No.: S2949436; CAS No.: 67706-68-7; WebOct 4, 2002 · Reduction with baker's yeast of ethyl or methyl 4-chloro-3-oxobutanoate in the presence of allyl bromide or allyl alcohol as additive afforded the corresponding L-and D-3-hydroxyesters. cisco smartnet firewall

UNII CFH5LG292R - ETHYL 4-CHLORO-4-OXOBUTANOATE

Ethyl acetoacetate - Wikipedia

WebBiocatalysis of ethyl 4-chloro-3-oxobutanoate (COBE) to ethyl (S)-4-chloro-3-hydroxybutanoate [(S)-CHBE] was carried out using Escherichia coli co-expressing a carbonyl reductase gene from Pichia stipitis and a glucose dehydrogenase gene from Bacillus megaterium. An efficient polycistronic plasmid w … WebJun 22, 2013 · The enzymatic asymmetric reduction of ethyl 4-chloro-3-oxobutanoate (COBE), which can be easily synthesized from diketene (Hoff and Anthonsen 1999; Sundby et al. 2003), is a promising way to produce (S)-CHBE (Matsuda et al. 2009; Ye et al. 2011). CBRs are the best suitable catalysts for this reduction reaction. diamond sharpening setWebNov 3, 2016 · Ethyl ( S )-4-chloro-3-hydroxybutanoate [ ( S )-CHBE] is known as one key chiral precursor of enantiopure intermediates for synthesizing cholesterol-lowering hydroxymethylglutaryl-CoA reductase inhibitors like atorvastatin calcium [ 6 – 13 ]. cisco smart net total care - extended se

"WebFeb 16, 2024 · Ethyl 4-chloro-3-oxobutanoate can be analyzed by this reverse phase (RP) HPLC method with simple conditions. The mobile … " - Ethyl 4-chloro-3-oxobutanoate

Ethyl 4-chloro-3-oxobutanoate

WebEthyl 4-chloro-2-(ethoxyimino)-3-oxobutanoate C8H12ClNO4 CID 53877278 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more. WebFind ethyl 3-oxobutanoate and related products for scientific research at Merck. IN EN. Applications Products Services Support. Advanced Search. Structure Search. ... Ethyl 2-chloro-4,4,4-trifluoro-3-oxobutanoate. Empirical Formula (Hill Notation): C 6 H 6 ClF 3 O 3. Molecular Weight: 218.56. Compare Product No. Description SDS Pricing ...

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WebShowing 1-30 of 494 results for "ethyl-4-chloro-3-oxobutanoate" within Products. Products Genes Papers Technical Documents Site Content Chromatograms. Filter & Sort. All … WebThe enzyme catalyzed the stereoselective reduction of ethyl 4-chloro-3-oxobutanoate to the corresponding (S)-alcohol with a 100% enantiomeric excess, which is a useful chiral building block for the chemical synthesis of pharmaceuticals. The relative molecular mass of the enzyme was estimated to be 76,000 on high performance gel filtration ...

WebFeb 16, 2024 · Ethyl 4-chloro-3-oxobutanoate can be analyzed by this reverse phase (RP) HPLC method with simple conditions. The mobile phase contains an acetonitrile (MeCN), water, and phosphoric acid. For Mass-Spec (MS) compatible applications the phosphoric acid needs to be replaced with formic acid. Smaller 3 µm particles columns available for … WebFeb 23, 2024 · Thesis: “One-pot reaction (transesterification, Carroll rearrangement and decarboxylation) from ethyl 4-chloro-3-oxobutanoate towards the synthesis of 7-oxa-1 …

WebEthyl 2-chloro-4,4,4-trifluoro-3-oxobutanoate AldrichCPR; find Sigma-Aldrich-PH015737 MSDS, related peer-reviewed papers, technical documents, similar products & more at … WebEthyl (S)-4-chloro-3-hydroxybutanoate ((S)-CHBE) is an important chiral intermediate for the synthesis of "blockbuster" drug statins. The carbonyl reductase ChKRED20 from …

WebchemBlink provides more information about suppliers of Ethyl 4-(4-Chloro-3-Fluorophenyl)-4-Oxobutanoate (CAS # 473693-78-6) ... Ethyl 4-(4-Chloro-3-Fluorophenyl)-4-Oxobutanoate. CAS Registry Number: 473693-78-6 . Molecular Formula: C 12 H 12 ClFO 3. Molecular Weight: 258.67: SMILES: Fc1cc(ccc1Cl)C(=O)CCC(=O)OCC.

WebMar 1, 2006 · After separate cultivations, these two strains were then mixed together at appropriate ratio to construct a novel two-strain system, in which M15 (pQE30-car0210) expressed CAR for ethyl 4-chloro-3-oxobutanoate (COBE) bioreduction and M15 (pQE30-gdh0310) expressed glucose dehydrogenase (GDH) for nicotinamide adenine … diamond sharpening discWebThe asymmetric reduction of ethyl 4-chloro-3-oxobutanoate (COBE) to ethyl (S)-4-chloro-3-hydroxybutanoate ((S)-CHBE) was investigated.Escherichia coli cells expressing both the carbonyl reductase (S1) gene from Candida magnoliae and the glucose dehydrogenase (GDH) gene from Bacillus megaterium were used as the catalyst. In an organic-solvent … diamond sharpening rods home depotWebEthyl 4-chloro-3-oxobutanoate;methyl 4-chloro-3-oxobutanoate C11H16Cl2O6 CID 88192228 - structure, chemical names, physical and chemical properties, classification, … diamond sharpening stone double sidedWebFeb 23, 2024 · Thesis: “One-pot reaction (transesterification, Carroll rearrangement and decarboxylation) from ethyl 4-chloro-3-oxobutanoate towards the synthesis of 7-oxa-1-azaspiro [4.4]nonane derivatives... cisco smartnet warrantyWebThe asymmetric reduction of ethyl 4-chloro-3-oxobutanoate (COBE) to ethyl (R)-4-chloro-3-hydroxybutanoate [(R)-CHBE] using Escherichia coli cells, which coexpress … cisco smartnet product inventory managementWebPreferred Substance Name: ETHYL 4-CHLORO-4-OXOBUTANOATE The Preferred Substance Name (PSN) is the official or preferred name of a substance or ingredient. … cisco smartnet part numbersWebEthyl (R, S)-4-chloro-3-hydroxybutanoate (ECHB) is a useful chiral building block for the synthesis of L-carnitine and hypercholesterolemia drugs. The yeast reductase, YOL151W (GenBank locus tag), exhibits an enantioselective reduction activity, converting ethyl-4-chlorooxobutanoate (ECOB) exclusively into (R)-ECHB. diamond sharpening sticks