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1-Phenylphosphin-2,5-dien-4-one 1-oxide, also known as 1-phenyl-1,2,4-dioxaphosphol-3-ene 2-oxide, is a phosphorus-containing organic compound with the molecular formula C8H7O3P. It is a yellow crystalline solid that is soluble in organic solvents such as dichloromethane and acetonitrile. 1-phenylphosphin-2,5-dien-4-one 1-oxide is an important intermediate in the synthesis of various phosphorus-containing compounds, particularly in the preparation of phosphorus heterocycles and phosphorus-containing natural products. It is also used as a ligand in coordination chemistry and as a reagent in organic synthesis. Due to its unique structure and reactivity, 1-phenylphosphin-2,5-dien-4-one 1-oxide has attracted significant attention in the field of organophosphorus chemistry.

7349-13-5

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7349-13-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 7349-13-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,3,4 and 9 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 7349-13:
(6*7)+(5*3)+(4*4)+(3*9)+(2*1)+(1*3)=105
105 % 10 = 5
So 7349-13-5 is a valid CAS Registry Number.

7349-13-5Relevant academic research and scientific papers

Desymmetrization Approach to the Synthesis of Optically Active P-Stereogenic Phosphin-2-en-4-ones

?astawiecka, El?bieta,Frynas, S?awomir,Pietrusiewicz, K. Micha?

, p. 6195 - 6206 (2021)

Two synthetic protocols for the conversion of 1-phenylphosphinan-4-ones to novel P-stereogenic 1-phenylphosphin-2-en-4-ones by enantioselective deprotonation followed by oxidation and by asymmetric organocatalytic halogenation accompanied by elimination have been developed. These two-step one-pot transformations provide convenient access to optically active 1-phenylphosphin-2-en-4-one 1-sulfide and 1-phenylphosphin-2-en-4-one 1-oxide of 96 and 55% enantiomeric purities, respectively.

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