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138409-83-3

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138409-83-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138409-83-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,4,0 and 9 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 138409-83:
(8*1)+(7*3)+(6*8)+(5*4)+(4*0)+(3*9)+(2*8)+(1*3)=143
143 % 10 = 3
So 138409-83-3 is a valid CAS Registry Number.

138409-83-3Downstream Products

138409-83-3Relevant articles and documents

Annulation Reactions with Iron(III) Chloride: Oxidation of Imines

Leardini, Rino,Nanni, Daniele,Tundo, Antonio,Zanardi, Giuseppe,Ruggieri, Fabrizio

, p. 1842 - 1848 (2007/10/02)

Aromatic imines react with phenylacetylene or styrene in an acetonitrile solution of iron(III) chloride to give quinolines 3 or their tetrahydro derivatives 11 together with variable amounts of products 4 arising from the reduction of the imines.The initial step appears to be a one-electron oxidation to generate iron(II) and an imine radical cation.When the reactions are carried out in the presence of stoichiometric amounts of tetrachloro-p-benzoquinone (chloranil), only quinolines 3 are obtained.

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