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686343-78-2

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686343-78-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 686343-78-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,6,3,4 and 3 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 686343-78:
(8*6)+(7*8)+(6*6)+(5*3)+(4*4)+(3*3)+(2*7)+(1*8)=202
202 % 10 = 2
So 686343-78-2 is a valid CAS Registry Number.

686343-78-2Relevant articles and documents

Efficient synthesis of orthogonally protected anti-2,3-diamino acids

Capone, Stefania,Guaragna, Annalisa,Palumbo, Giovanni,Pedatella, Silvana

, p. 6575 - 6579 (2007/10/03)

An asymmetric synthesis of anti-2,3-diamino acids is reported. The enolates of N,N-dibenzylated β3-amino esters were treated with di-tert-butyl azodicarboxylate (DBAD) to afford their N′,N″-di-Boc- 2-hydrazino derivatives with excellent anti di

Kowalski ester homologation. Application to the synthesis of β-amino esters

Gray, Diane,Concellon, Carmen,Gallagher, Timothy

, p. 4849 - 4851 (2007/10/03)

The Kowalski ester homologation protocol has been applied to a representative range of α-amino esters to provide β-amino esters with excellent levels of enantio- and diastereocontrol. A key feature of this chemistry is the nature of the N-protecting group that is employed.

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