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1264519-05-2

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1264519-05-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1264519-05-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,6,4,5,1 and 9 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1264519-05:
(9*1)+(8*2)+(7*6)+(6*4)+(5*5)+(4*1)+(3*9)+(2*0)+(1*5)=152
152 % 10 = 2
So 1264519-05-2 is a valid CAS Registry Number.

1264519-05-2Relevant articles and documents

Enantioselective [3 + 2] cycloaddition of allenes to acrylates catalyzed by dipeptide-derived phosphines: Facile creation of functionalized cyclopentenes containing quaternary stereogenic centers

Han, Xiaoyu,Wang, Youqing,Zhong, Fangrui,Lu, Yixin

, p. 1726 - 1729 (2011/04/17)

A new family of dipeptide-based chiral phosphines was designed and prepared. d-Thr-l-tert-Leu-derived catalyst 4c promoted [3 + 2] cycloaddition of allenoates to α-substituted acrylates in a regiospecific and stereoselective manner, furnishing functionalized cyclopentenes with quaternary stereogenic centers in high yields and with excellent enantioselectivities.

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