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131003-13-9

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131003-13-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 131003-13-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,0,0 and 3 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 131003-13:
(8*1)+(7*3)+(6*1)+(5*0)+(4*0)+(3*3)+(2*1)+(1*3)=49
49 % 10 = 9
So 131003-13-9 is a valid CAS Registry Number.

131003-13-9Downstream Products

131003-13-9Relevant articles and documents

Arylation of Phenols. Convenient, Regiospecific Methods for Mono- or Bis-p-fluorophenylations, Suitable for Large Scale Syntheses

Jendralla, Heiner,Chen, Li-Jian

, p. 827 - 833 (2007/10/02)

Phenols have been arylated by a palladium(0)-catalyzed coupling reaction.Two methods were used: a Grignard reagent of a protected phenol component 2 was coupled with a haloarene, or an umpolung (reversed reactivity) where unprotected phenolic halides 6 were coupled with aryl Grignard reagents.Bis-arylation and regiospecific ortho-, meta- and para-arylations were achieved.Aryl-aryl-couplings were insensitive to steric hindrance in the Grignard component, but were inhibited by sulfur-containing substituents in the phenolic component.A thiocyanate substituted biaryl was used to synthesize arylated phenols with various sulfur functionalities.

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