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153440-80-3

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153440-80-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 153440-80-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,3,4,4 and 0 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 153440-80:
(8*1)+(7*5)+(6*3)+(5*4)+(4*4)+(3*0)+(2*8)+(1*0)=113
113 % 10 = 3
So 153440-80-3 is a valid CAS Registry Number.

153440-80-3Relevant articles and documents

Stereocontrolled 1,3-dipolar cycloadditions using Oppolzer's camphor sultam as the chiral auxiliary for carbonyl stabilized azomethine ylides

Garner, Philip,Dogan, ?zdemir,Youngs, Wiley J.,Kennedy, Vance O.,Protasiewicz, John,Zaniewski, Rebecca

, p. 71 - 85 (2007/10/03)

Two complementary approaches to substituted pyrrolidines via stereocontrolled 1,3-dipolar cycloaddition reactions of chiral azomethine ylides are described. In one approach, chiral azomethine ylides were generated by thermolysis of aziridine carboxylate sultams and trapped with a variety of dipolarophiles to give good yields of the corresponding cycloadducts. In the second approach, chiral azomethine ylides were generated from glycyl sultams by 'imine tautomerization' and trapped with dipolarophiles to give good yields of the corresponding cycloadducts.

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