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108799-99-1

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108799-99-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 108799-99-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,8,7,9 and 9 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 108799-99:
(8*1)+(7*0)+(6*8)+(5*7)+(4*9)+(3*9)+(2*9)+(1*9)=181
181 % 10 = 1
So 108799-99-1 is a valid CAS Registry Number.

108799-99-1Downstream Products

108799-99-1Relevant articles and documents

Synthesis of 3-substituted indazoles from arynes and N-tosylhydrazones

Li, Pan,Zhao, Jingjing,Wu, Chunrui,Larock, Richard C.,Shi, Feng

body text, p. 3340 - 3343 (2011/09/12)

Readily available, stable, and inexpensive N-tosylhydrazones react with arynes under mild reaction conditions to afford 3-substituted indazoles in moderate to good yields. The reaction appears to involve a dipolar cycloaddition of in situ generated diazo

Pentavalent Organobismuth Reagents. Part 3. Phenylation of Enols and of Enolate and other Anions

Barton, Derek H. R.,Blazejewski, Jean-Claude,Charpiot, Brigitte,Finet, Jean-Pierre,Motherwell, William B.,et al.

, p. 2667 - 2676 (2007/10/02)

The phenylation of enols and of enolate anions of ketones, β-diketones and keto esters has been studied using a range of Bi reagents.Under basic conditions C-phenylation is observed and, even hindered, perphenylated compounds are easily synthesized.Under neutral and acidic conditions ordinary ketones do not react and enolic systems give O-phenylation.A number of other anions have been phenylated under basic conditions, including the key compound indole wich mainly gave 3-C-phenylation.All these reactions can be supposed to have one of two alternative mechanisms, which parallel the two mechanisms proposed for the phenylation of phenols.

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