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781658-60-4

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781658-60-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 781658-60-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,8,1,6,5 and 8 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 781658-60:
(8*7)+(7*8)+(6*1)+(5*6)+(4*5)+(3*8)+(2*6)+(1*0)=204
204 % 10 = 4
So 781658-60-4 is a valid CAS Registry Number.

781658-60-4Relevant articles and documents

Self-condensation of N-tert-butanesulfinyl aldimines: Application to the rapid asymmetric synthesis of biologically important amine-containing compounds

Schenkel, Laurie B.,Ellman, Jonathan A.

, p. 3621 - 3624 (2004)

(Chemical Equation Presented) Highly diastereoselective intra- and intermolecular self-condensation reactions of N-tert-butanesulfinyl aldimines have been developed and applied to the rapid, asymmetric synthesis of frans-2-aminocyclopentanecarboxylic acid and the drug candidate SC-53116. Key to both syntheses is a novel microwave-assisted reaction in which N-sulfinyl aldimines are cleanly converted into nitrites in high-yielding concerted elimination processes.

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