514213-34-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 514213-34-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,1,4,2,1 and 3 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 514213-34:
(8*5)+(7*1)+(6*4)+(5*2)+(4*1)+(3*3)+(2*3)+(1*4)=104
104 % 10 = 4
So 514213-34-4 is a valid CAS Registry Number.
514213-34-4Relevant articles and documents
Asymmetric oxidation of 3-alkyl-1,2-cyclopentanediones. Part 1: 3-Hydroxylation of 3-alkyl-1,2-cyclopentanediones
Paju, Anne,Kanger, Tonis,Pehk, Tonis,Mueuerisepp, Aleksander-Mati,Lopp, Margus
, p. 2439 - 2448 (2002)
3-Alkyl-1,2-cyclopentanediones undergo asymmetric 3-hydroxylation with the Sharpless Ti-complex resulting in enantiomeric 3-hydroxy carbonyl compounds with ee up to 95% in yields of 22-40%.
