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21502-70-5

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21502-70-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21502-70-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,5,0 and 2 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 21502-70:
(7*2)+(6*1)+(5*5)+(4*0)+(3*2)+(2*7)+(1*0)=65
65 % 10 = 5
So 21502-70-5 is a valid CAS Registry Number.

21502-70-5Relevant articles and documents

Oxidative Cross-Coupling of Boron and Antimony Nucleophiles via Palladium(I)

Simpson, Quillon,Sinclair, Matthew J. G.,Lupton, David W.,Chaplin, Adrian B.,Hooper, Joel F.

, p. 5537 - 5540 (2018)

The use of an isolatable, monomeric Pd(I) complex as a catalyst for the oxidative cross-coupling of aryl-antimony and aryl-boron nucleophiles is reported. This reaction tolerates a wide variety of substrates, with >20:1 selectivity for cross-coupled products. This strategy offers a new approach to achieving the selective cross-coupling of nucleophiles.

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