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431942-70-0

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431942-70-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 431942-70-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,1,9,4 and 2 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 431942-70:
(8*4)+(7*3)+(6*1)+(5*9)+(4*4)+(3*2)+(2*7)+(1*0)=140
140 % 10 = 0
So 431942-70-0 is a valid CAS Registry Number.

431942-70-0Downstream Products

431942-70-0Relevant articles and documents

Sterically controlled iodination of arenes via iridium-catalyzed C-H borylation

Partridge, Benjamin M.,Hartwig, John F.

supporting information, p. 140 - 143 (2013/03/28)

A mild method to prepare aryl and heteroaryl iodides by sequential C-H borylation and iodination is reported. The regioselectivity of this process is controlled by steric effects on the C-H borylation step and is complementary to existing methods to form aryl iodides. The iodination of boronic esters has potential for the synthesis of radiolabeled aryl iodides, as demonstrated by the concise synthesis of a potential tracer for SPECT imaging.

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