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1577232-99-5

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1577232-99-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1577232-99-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,7,7,2,3 and 2 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1577232-99:
(9*1)+(8*5)+(7*7)+(6*7)+(5*2)+(4*3)+(3*2)+(2*9)+(1*9)=195
195 % 10 = 5
So 1577232-99-5 is a valid CAS Registry Number.

1577232-99-5Downstream Products

1577232-99-5Relevant articles and documents

Pd-catalyzed α-arylation of α,α-difluoroketones with aryl bromides and chlorides. A route to difluoromethylarenes

Ge, Shaozhong,Cha?adaj, Wojciech,Hartwig, John F.

supporting information, p. 4149 - 4152 (2014/04/03)

We report the Pd-catalyzed α-arylation of α,α- difluoroketones with aryl and heteroaryl bromides and chlorides catalyzed by an air- and moisture-stable palladacyclic complex containing P(t-Bu)Cy2 as ligand. The combination of this Pd-catalyzed arylation and base-induced cleavage of the acyl-aryl C-C bond within the α-aryl-α,α- difluoroketone constitutes a one-pot, two-step procedure to synthesize difluoromethylarenes from aryl halides. A broad range of electronically varied aryl and heteroaryl bromides and chlorides underwent these two transformations, providing α-aryl-α,α-difluoroketones, difluoromethylarenes, and difluoromethylheteroarenes in high yields.

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