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α-Fluor-α-cinnamylidenessigsaeure-ethylester, also known as ethyl 2-fluoro-2-phenylpropionate, is an organic compound with the chemical formula C11H11FO2. It is a colorless liquid with a fruity, floral odor and is used as a fragrance ingredient in various applications, such as perfumes, cosmetics, and personal care products. α-Fluor-α-cinnamylidenessigsaeure-ethylester is synthesized by reacting ethyl diazoacetate with benzaldehyde in the presence of a rhodium catalyst, followed by fluorination using a fluorinating agent like DAST (diethylaminosulfur trifluoride). Due to its unique structure and properties, α-fluor-α-cinnamylidenessigsaeure-ethylester is valued for its ability to impart a fresh, green, and fruity scent to the final product, making it a popular choice among perfumers and formulators.

1977-47-5

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1977-47-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1977-47-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,9,7 and 7 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1977-47:
(6*1)+(5*9)+(4*7)+(3*7)+(2*4)+(1*7)=115
115 % 10 = 5
So 1977-47-5 is a valid CAS Registry Number.

1977-47-5Relevant academic research and scientific papers

Phosphonium supported triphenylphosphine reagent: an improved access to α-fluoro-α,β-unsaturated esters

Zoute, Ludivine,Lacombe, Céline,Quirion, Jean-Charles,Charette, André B.,Jubault, Philippe

, p. 7931 - 7933 (2006)

α-Fluoro-α,β-unsaturated esters 2 were efficiently synthetized via diethylzinc-promoted Wittig reaction using a phosphonium-supported triphenylphosphine SCG-PPh3 1, which possesses similar reactivity as its parent analog triphenylphosphine. The

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