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1-(9-phenyl-fluoren-9-yl)-ethanone is an organic compound with the molecular formula C21H16O. It is a derivative of fluorenone, featuring a phenyl group attached to the fluorenone core. This molecule is characterized by its conjugated π-system, which contributes to its electronic properties and potential applications in materials science, such as in the development of organic semiconductors or as a precursor in the synthesis of more complex molecules. The compound's structure allows for various chemical modifications, making it a versatile building block in organic synthesis.

3299-86-3

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3299-86-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 3299-86-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,2,9 and 9 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 3299-86:
(6*3)+(5*2)+(4*9)+(3*9)+(2*8)+(1*6)=113
113 % 10 = 3
So 3299-86-3 is a valid CAS Registry Number.

3299-86-3Relevant academic research and scientific papers

REACTIVITY OF CARBANIONS. XXII. REACTIONS OF ALKALI-METAL SALTS OF CH ACIDS WITH 9-ACETYL-9-CYANOFLUORENE

Solov'yanov, A. A.,Gulyukina, N. S.,Beletskaya, I. P.,Reutov, O. A.

, p. 209 - 212 (2007/10/02)

The reactions of the lithium and cesium derivatives of 9-methyl-, 9-benzyl-, 9-phenyl-, and 9-methoxycarbonylfluorene, 1,3-diphenylindene, and fluoradene with 9-acetyl-9-cyanofluorene in 1,2-dimethoxyethane take place by a mechanism of nucleophilic substitution at the carbonyl group and lead to the formation of the products from acylation of the carbanions and the corresponding alkali-metal salts of 9-cyanofluorene.If there is a small difference between the pKa value of the CH acid conjugate with the carbanion reagent and the pKa value of 9-cyanofluorene, it is possible to measure the equilibrium constant of the reaction.

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