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"(Rp)-[(tert-butyl)(phenyl)phosphinoyl]acetic acid menthyl ester" is a complex organic compound with the molecular formula C20H31O2P. It is a chiral phosphine ligand, which is widely used in asymmetric catalysis due to its ability to form stable complexes with transition metals. The compound consists of a tert-butyl group, a phenyl group, a phosphinoyl group, an acetic acid moiety, and a menthyl ester group. The "Rp" notation indicates the specific configuration of the chiral center in the molecule. This ligand is known for its high enantioselectivity and stability, making it a valuable tool in the synthesis of various pharmaceuticals and fine chemicals.

98933-82-5

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98933-82-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 98933-82-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,9,3 and 3 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 98933-82:
(7*9)+(6*8)+(5*9)+(4*3)+(3*3)+(2*8)+(1*2)=195
195 % 10 = 5
So 98933-82-5 is a valid CAS Registry Number.

98933-82-5Relevant academic research and scientific papers

Aminohydroxy phosphine oxide ligands in ruthenium-catalysed asymmetric transfer hydrogenation reactions

Cheng, Xiaohui,Horton, Peter N.,Hursthouse, Michael B.,Hii, King Kuok

, p. 2241 - 2246 (2007/10/03)

A class of aminohydroxy phosphine oxide ligands was derived from optically active amino alcohols, containing stereogenic centres at phosphorus and at carbon. Their activities and selectivities in the asymmetric transfer hydrogenation reaction were assesse

A NEW METHOD FOR THE SYNTHESIS OF OPTICALLY PURE PHOSPHINE OXIDES

Imamoto, Tsuneo,Sato, Kazuhiko,Johnson, Carl R.

, p. 783 - 786 (2007/10/02)

Tertiary phosphine oxides have been prepared with high enantiomeric excesses via intermediate menthyl 2-phosphinylacetates.

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