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13027-70-8

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13027-70-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 13027-70-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,0,2 and 7 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 13027-70:
(7*1)+(6*3)+(5*0)+(4*2)+(3*7)+(2*7)+(1*0)=68
68 % 10 = 8
So 13027-70-8 is a valid CAS Registry Number.

13027-70-8Relevant articles and documents

Catalytic enantioselective construction of all-carbon quaternary stereocenters: Synthetic and mechanistic studies of the C-acylation of silyl ketene acetals

Mermerian, Ara H.,Fu, Gregory C.

, p. 5604 - 5607 (2007/10/03)

With the aid of an appropriate chiral catalyst, acyclic silyl ketene acetals react with anhydrides to furnish 1,3-dicarbonyl compounds that bear all-carbon quaternary stereocenters in good ee and yield. Mechanistic studies provide strong support for a catalytic cycle that involves activation of both the electrophile (anhydride → acylpyridinium) and the nucleophile (silyl ketene acetal → enolate).

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