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146404-40-2

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146404-40-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 146404-40-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,6,4,0 and 4 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 146404-40:
(8*1)+(7*4)+(6*6)+(5*4)+(4*0)+(3*4)+(2*4)+(1*0)=112
112 % 10 = 2
So 146404-40-2 is a valid CAS Registry Number.

146404-40-2Relevant articles and documents

A Convenient Conversion of Primary Amines into the Corresponding Halides Radical Promoted Halodeamination via N-Substituted-N-Tosylhydrazines

Collazo, Luis R.,Guziec, Frank S.,Hu, Wei-Xiao Jr.,Pankayatselvan, Ratnadevi

, p. 7911 - 7914 (2007/10/02)

Treatment of 1-substituted-1-tosylhydrazines with 2 equivalents of NCS or NBS in dry THF in presence of light affords the corresponding alkyl halides in good yields.This reaction presumably involves the initial formation of a stabilized hydrazyl radical which is halogenated in a radical chain process.Elimination of p-toluenesulfinic acid and extrusion of nitrogen leads to the corresponding alkyl halide.This route provides an improved method for halodeamination under neutral reaction conditions.

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