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Ethyl 2,2-difluoro-2-nitroacetate is an organic compound with the chemical formula C4H5F2NO4. It is a colorless liquid that is soluble in organic solvents. ethyl 2,2-difluoro-2-nitroacetate is an important intermediate in the synthesis of various pharmaceuticals and agrochemicals, particularly those containing the difluoromethyl group. It is synthesized through the nitration of ethyl 2,2-difluoroacetate, followed by esterification. Due to its reactivity and potential to form explosive compounds, it requires careful handling and storage. Ethyl 2,2-difluoro-2-nitroacetate is also known for its use in the preparation of fluorinated building blocks, which are valuable in the development of new drugs and chemical compounds with unique properties.

680-69-3

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680-69-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 680-69-3 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,8 and 0 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 680-69:
(5*6)+(4*8)+(3*0)+(2*6)+(1*9)=83
83 % 10 = 3
So 680-69-3 is a valid CAS Registry Number.

680-69-3Relevant academic research and scientific papers

Elemental fluorine. Part 9 : Catalysis of the direct fluorination of 2-substituted carbonyl compounds

Chambers, Richard D.,Hutchinson, John

, p. 45 - 52 (1998)

Catalysis of the reaction between fluorine and a range of 2-substituted carbonyl compounds has been investigated. Most notably, the preparation of diethyl-2-fluoromalonate has been achieved in high yield by fluorination of diethylmalonate in the presence of hydrated copper nitrate. Reactions between fluorine and carbanions derived from 2-substituted carbonyl compounds, including phosphonates, sulphones and nitriles, are also discussed.

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