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1396318-54-9

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1396318-54-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1396318-54-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,9,6,3,1 and 8 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1396318-54:
(9*1)+(8*3)+(7*9)+(6*6)+(5*3)+(4*1)+(3*8)+(2*5)+(1*4)=189
189 % 10 = 9
So 1396318-54-9 is a valid CAS Registry Number.

1396318-54-9Relevant articles and documents

Synthesis of new enantiomerically pure spirooxindolopyrrolizidines via a three-component asymmetric 1,3-dipolar cycloaddition reaction of azomethine ylides derived from isatin

Taghizadeh, Mohammad Javad,Arvinnezhad, Hamid,Samadi, Saadi,Jadidi, Khosrow,Javidan, Abdollah,Notash, Behrouz

supporting information; experimental part, p. 5148 - 5150 (2012/09/22)

An efficient, one-pot, three-component procedure for the synthesis of a small library of new chiral spirooxindolopyrrolizidines with high regio-, diastereo-, and enantioselectivity, from the 1,3-dipolar cycloaddition of azomethine ylides and optically active cinnamoyl oxazolidinone is described. The process occurs at room temperature in aqueous ethanol as a green solvent and in the absence of any Lewis acids. The oxazolidinone chiral auxiliary is removed in a non-destructive manner. The reaction mechanism is discussed on the basis of the assignment of the absolute configuration of the cycloadducts, and on theoretical calculations.

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