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81075-99-2

(1R,2S)-2-((S)-Benzyl-phenyl-phosphinoyl)-1,2,3,4-tetrahydro-phenanthrene-1-carboxylic acid methyl ester is a complex organic compound with the molecular formula C31H31O3PS. It is a chiral molecule, meaning it has a non-superimposable mirror image, and it is characterized by its specific stereochemistry, with the R and S configurations at the first and second carbon atoms, respectively. (1R,2S)-2-((S)-Benzyl-phenyl-phosphinoyl)-1,2,3,4-tetrahydro-phenanthrene-1-carboxylic acid methyl ester features a phenanthrene core, which is a tricyclic aromatic hydrocarbon, and is further functionalized with a benzyl-phenyl-phosphinoyl group at the 2-position. The carboxylic acid group is esterified with a methyl group, making it a methyl ester. Such compounds are often used in organic synthesis, particularly in the formation of metal complexes and as ligands in homogeneous catalysis, due to their ability to chelate metals and influence reaction selectivity.

81075-99-2

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81075-99-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81075-99-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,0,7 and 5 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 81075-99:
(7*8)+(6*1)+(5*0)+(4*7)+(3*5)+(2*9)+(1*9)=132
132 % 10 = 2
So 81075-99-2 is a valid CAS Registry Number.

81075-99-2Relevant articles and documents

An Efficient Synthesis of the Enantiomeric 17-Phosphasteroid System

Bodalski, Ryszard,Koszuk, Jacek,Krawczyk, Henryk,Pietrusiewicz, K. Michal

, p. 2219 - 2220 (1982)

Enantiomeric trans-benzylphenylphosphine oxide (6) undergoes regio- and stereoselective cycloaddition to 1-vinylnaphthalene (5), providing two diastereomeric adducts 7a and 7b, which are further transformed into optically pure 17-phosphasteroid systems by intramolecular Dieckmann-type condensation.

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