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55559-76-7

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55559-76-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 55559-76-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,5,5 and 9 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 55559-76:
(7*5)+(6*5)+(5*5)+(4*5)+(3*9)+(2*7)+(1*6)=157
157 % 10 = 7
So 55559-76-7 is a valid CAS Registry Number.

55559-76-7Relevant articles and documents

EFFICIENT AND REGIOCONTROLLED NICKEL(II)-CATALYZED ALKYLATION OF 2-ALKYL-1,3-DIOXEP-4-ENES BY GRIGNARD REAGENTS: A SIMPLE ROUTE TO ALLYLIC ALCOHOLS

Malanga, Corrado,Menicagli, Rita,Lardicci, Luciano

, p. 45 - 50 (2007/10/02)

The regio- and the stereochemistries of the NidppeCl2 catalyzed alkylation of 2-alkyl-1,3-dioxep-4-enes by Grignard reagents are not affected by the nature of the C2 substituent; in any case, allylic alcohols are the main reaction products and nearly pure Z isomers are almost quantitatively obtained when either secondary or tertiary Grignard reagents are used.A rationale for the reaction is proposed.

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