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107487-23-0

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107487-23-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 107487-23-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,7,4,8 and 7 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 107487-23:
(8*1)+(7*0)+(6*7)+(5*4)+(4*8)+(3*7)+(2*2)+(1*3)=130
130 % 10 = 0
So 107487-23-0 is a valid CAS Registry Number.

107487-23-0Relevant articles and documents

OPTICALLY ACTIVE TRIORGANOSILYL ESTERS OF PHOSPHORUS. SYNTHESIS AND STRUCTURE

Chojnowski, J.,Cypryk, M.,Michalski, J.,Wozniak, L.,Corriu, R.,Lanneau, G.

, p. 385 - 398 (2007/10/02)

We report this synthesis of the first optically active silyl esters of phosphorus having two centres of chirality : one on silicon and the other on phosphorus.Compounds are obtained of general formula : t-BuPhP(X)YSiαNpPhMe X,Y=O, O(1); S, O(2); Se, O(3); S, S(4); doublet, O(5) including 1 and 3 with optical activity located on Si, 2 and 5 with the activity on Si or P and on both these centres, 4 only racemic.Absolute configurations are determined. 31P and 29Si NMR spectra of these models and their trimethylsilyl analogues are reported.The triorganosilyl group is always preferentially bound to phosphorus through oxygen atom.Surprisingly, diastereotopic NMR chemical shifts exclude the fast 1,3 migration in esters 1 and 4. 29Si NMR spectra correspond to a tetracoordinate silicon atom.

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