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69668-89-9

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69668-89-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 69668-89-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,6,6 and 8 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 69668-89:
(7*6)+(6*9)+(5*6)+(4*6)+(3*8)+(2*8)+(1*9)=199
199 % 10 = 9
So 69668-89-9 is a valid CAS Registry Number.

69668-89-9Relevant articles and documents

A NOVEL REACTION OF α-HALOEPOXIDES WITH TRIALKYLSTANNATES

Corey, L. D.,Singh, S. M.,Oehlschlager, A. C.

, p. 1821 - 1827 (2007/10/02)

The reaction of α-haloepoxides with zinc powder or reagents containing tialkylstannate anion yields allylic alcohols by anti elimination of carbon halogen and adjacent carbon epoxy oxygen bonds.Appreciable Z -> E isomerization occurs in both types of reactions but the experimental results indicate that the conversion of erythro α-bromoepoxides to E allylic alcohols by zinc or trialkylstannates shows sufficient sterospecificity to be synthetically useful.

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