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21019-60-3

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21019-60-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21019-60-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,0,1 and 9 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 21019-60:
(7*2)+(6*1)+(5*0)+(4*1)+(3*9)+(2*6)+(1*0)=63
63 % 10 = 3
So 21019-60-3 is a valid CAS Registry Number.

21019-60-3Relevant articles and documents

TITANIUM-MEDIATED AND NEIGHBORING-GROUP ASSISTED δ-METHYLATION OF HOMOALLYL ALCOHOLS : A NEW REGIO- AND STEREOSELECTIVE CC-LINKING REACTION

Fujita, Katsuramaru,Moret, Etienne,Schlosser, Manfred

, p. 1819 - 1822 (2007/10/02)

Upon treatment with dimethyltitanium dichloride or trimethylaluminium in the presence of titanium tetrachloride, a hydrogen atom at the olefinic 4-position is replaced by a methyl group.Terminal homoallyl alcohols afford (E)-isomers.If the double bond is an internal one, the carbon chain (at the other side of the hydroxy group) leaves its original position to the enterning methyl group and switches to the other one at the same carbon atom.

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