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4-Hexenoic acid, 3-oxo-2-(triphenylphosphoranylidene)-, methyl ester is a complex organic compound with the chemical formula C26H25O3P. It is a derivative of 4-hexenoic acid, featuring a 3-oxo-2-triphenylphosphoranylidene group and a methyl ester functional group. 4-Hexenoic acid, 3-oxo-2-(triphenylphosphoranylidene)-, methyl ester is characterized by its conjugated double bond system, which extends from the 4-hexenoic acid moiety through the triphenylphosphoranylidene group, and its ester functionality. It is likely to be used in synthetic chemistry, particularly in the formation of complex molecules or as an intermediate in the synthesis of pharmaceuticals or other specialty chemicals. The compound's structure provides it with unique reactivity and properties that can be exploited in various chemical transformations.

5159-31-9

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5159-31-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5159-31-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,1,5 and 9 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 5159-31:
(6*5)+(5*1)+(4*5)+(3*9)+(2*3)+(1*1)=89
89 % 10 = 9
So 5159-31-9 is a valid CAS Registry Number.

5159-31-9Downstream Products

5159-31-9Relevant academic research and scientific papers

Cumulated Ylides, 22. - Reactions of (Triphenylphosphoranylidene)ethenone with Halogen Compounds and their Preparative Application

Bestmann, Hans Juergen,Geismann, Christian,Zimmermann, Reiner

, p. 1501 - 1510 (2007/10/02)

(Triphenylphosphoranylidene)ethenone (6) reacts with halogen compounds 7 to yield four-membered ylide phosphonium salts 9.Ring opening of 9 under different conditions gives rise to the formation of bis-ylides 13, ylide salts 14, or bis-phosphonium salts 1

The Conversion of Carboxylic Acids to Keto Phosphorane Precursors of 1,2,3-Vicinal Tricarbonyl Compounds

Wasserman, Harry H.,Ennis, David S.,Blum, Charles A.,Rotello, Vincent M.

, p. 6003 - 6006 (2007/10/02)

Acyl phosphoranylidines react with acid chlorides or anhydrides in the presence of bis(trimethylsilyl)acetamide (BSA), or couple directly with carboxylic acids activated by EDCI to give keto phosphoranes 1.

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