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51756-08-2

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51756-08-2 Usage

Chemical Properties

clear colorless liquid

General Description

Methyl 2-ethylacetoacetate participates in the preparation of 5,6-disubstituted-1,3-dioxine-4-one.

Check Digit Verification of cas no

The CAS Registry Mumber 51756-08-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,7,5 and 6 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 51756-08:
(7*5)+(6*1)+(5*7)+(4*5)+(3*6)+(2*0)+(1*8)=122
122 % 10 = 2
So 51756-08-2 is a valid CAS Registry Number.
InChI:InChI=1/C7H12O3/c1-4-6(5(2)8)7(9)10-3/h6H,4H2,1-3H3/t6-/m0/s1

51756-08-2SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 15, 2017

Revision Date: Aug 15, 2017

1.Identification

1.1 GHS Product identifier

Product name METHYL 2-ETHYLACETOACETATE

1.2 Other means of identification

Product number -
Other names Butanoic acid, 2-ethyl-3-oxo-, methyl ester

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:51756-08-2 SDS

51756-08-2Relevant articles and documents

Preparation method of remdesivir intermediate 2-ethyl-1-butanol

-

Paragraph 0045-0046, (2020/08/09)

The invention relates to a preparation method of a remdesivir intermediate 2-ethyl-1-butanol. The preparation method comprises a step of substitution reaction, namely a step of carrying out a substitution reaction on alkyl acetoacetate and halogenated ethane under an alkaline condition to obtain alkyl 2-ethyl-3-oxo-butyrate; a step of addition reduction, namely a step of carrying out an addition reduction reaction on the alkyl 2-ethyl-3-oxo-butyate to obtain alkyl 2-ethylbutyrate; a step of reduction, namely a step of subjecting the alkyl 2-ethylbutyrate to a reduction reaction to prepare 2-ethyl-1-butanol (I). According to the preparation method of the remdesivir intermediate 2-ethyl-1-butanol, the alkyl acetoacetate and halogenated ethane serve as main raw materials, the raw materials are simple and easy to obtain, the 2-ethyl-1-butanol (I) is prepared through substitution reaction, addition reduction and reduction reaction, the process is simple, economical and environmentally friendly, the product is convenient to obtain, and industrial production of remdesivir bulk drugs is facilitated.

Enantioselective Palladium-Catalyzed Carbene Insertion into the N?H Bonds of Aromatic Heterocycles

Arredondo, Vanessa,Hiew, Stanley C.,Gutman, Eugene S.,Premachandra, Ilandari Dewage Udara Anulal,Van Vranken, David L.

supporting information, p. 4156 - 4159 (2017/04/03)

C3-substituted indoles and carbazoles react with α-aryl-α-diazoesters under palladium catalysis to form α-(N-indolyl)-α-arylesters and α-(N-carbazolyl)-α-arylesters. The products result from insertion of a palladium-carbene ligand into the N?H bond of the aromatic N-heterocycles. Enantioselection was achieved using a chiral bis(oxazoline) ligand, in many cases with high enantioselectivity (up to 99 % ee). The method was applied to synthesize the core of a bioactive carbazole derivative in a concise manner.

Catalytic hydroalkylation of olefins by stabilized carbon nucleophiles promoted by dicationic platinum(II) and palladium(II) complexes

Cucciolito, Maria E.,Damora, Angela,Vitagliano, Aldo

experimental part, p. 5878 - 5884 (2011/02/23)

The coordinated olefin in dicationic platinum(II) and palladium(II) complexes [M(PNP)(olefin)](SbF6)2 (M = Pt, Pd; PNP = 2,6-bis(diphenylphosphinomethyl)pyridine; olefin = ethylene, propylene) reacts with β-dicarbonyl compounds (pentane-2,4-dione and methyl-3-oxobutanoate). If the proton released after the nucleophilic attack is trapped by a base, stable σ-alkyl derivatives [(PNP)M-CH2-CH(R)CH(Ac)COR′] SbF6 (R = H, Me; R′ = Me, OMe) are formed; otherwise the M-C σ-bond can be cleaved by the proton, in the rate-determining step of a catalytic cycle that leads to the alkylated dicarbonyl compound. The β-diketone is intrinsically more reactive than the β-ketoester, but in the catalytic reaction of the former an inhibition effect is observed in the case of the platinum catalyst.

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