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1345893-90-4

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1345893-90-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1345893-90-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,4,5,8,9 and 3 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1345893-90:
(9*1)+(8*3)+(7*4)+(6*5)+(5*8)+(4*9)+(3*3)+(2*9)+(1*0)=194
194 % 10 = 4
So 1345893-90-4 is a valid CAS Registry Number.

1345893-90-4Downstream Products

1345893-90-4Relevant articles and documents

Diastereoselective access to nonracemic 2-cis-substituted and 2,6-cis-disubstituted piperidines

Coia, Nicolas,Mokhtari, Naima,Vasse, Jean-Luc,Szymoniak, Jan

supporting information; experimental part, p. 6292 - 6295 (2012/01/06)

Access to nonracemic amino ketones via a hydrozirconation/transmetalation/ acylation sequence applied to Boc-protected 1-aminobut-3-enes is presented. This method was applied to the stereoselective synthesis of cyclic imines (or iminiums) which were diastereoselectively converted into 2-cis-substituted and 2,6-cis-disubstituted piperidines. The potential of this approach in the field of alkaloid synthesis was illustrated by the synthesis of (-)-coniine and (-)-indolizidine 209D. Furthermore, access to indolizidines bearing a quaternary center could also be envisioned through this strategy.

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