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Ethyl 2,4-bis(triphenylphosphoranylidene)-3-oxobutanoate is a complex organic compound with the chemical formula C42H36O4P2. It is characterized by a butanoate backbone, which is a four-carbon chain with a carbonyl group (C=O) at the third position, making it a 3-oxobutanoate. The 2 and 4 positions of this chain are each substituted with a triphenylphosphoranylidene group, which consists of a phosphorus atom bonded to three phenyl rings. ethyl 2,4-bis(triphenylphosphoranylidene)-3-oxobutanoate is known for its unique structure and potential applications in organic synthesis and as a ligand in coordination chemistry. It is a white crystalline solid and is typically used in research settings due to its specialized nature.

4895-57-2

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4895-57-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4895-57-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,8,9 and 5 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 4895-57:
(6*4)+(5*8)+(4*9)+(3*5)+(2*5)+(1*7)=132
132 % 10 = 2
So 4895-57-2 is a valid CAS Registry Number.

4895-57-2Upstream product

4895-57-2Relevant academic research and scientific papers

A STUDY OF REACTIONS BETWEEN CARBOETHOXYMETHYLENETRIPHENYLPHOSPHORANE AND ALKYL DIBROMIDES

Araya-Maturana, Ramiro,Castaneda, Fernando

, p. 165 - 172 (2007/10/02)

Carboethoxymethylenetriphenylphosphorane 1-reacts with 1,4-dibromobutane and 1,5-dibromopentane under transylidation conditions in refluxing anhydrous benzene affording the cyclization products, 1-carboethoxycyclopentyl and 1-carboethoxycyclohexyltriphenylphosphonium bromides, 6, which by alkaline hydrolysis produce the corresponding cycloalkylcarboxylic acids and esters.Phosphorane 1 and its phosphonium salt 5 formed in the transylidation step also lead to 3-carboethoxy-3-triphenylphosphoranyliden-2-oxopropanetriphenylphosphonium bromide (9) as a secondary reaction product.Key words: Phosphoranes; transylidation; alkylation; cycloalkyltriphenylphosphonium salst; cycloalkylcarboxylic acids.

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