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912952-83-1

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912952-83-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 912952-83-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,2,9,5 and 2 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 912952-83:
(8*9)+(7*1)+(6*2)+(5*9)+(4*5)+(3*2)+(2*8)+(1*3)=181
181 % 10 = 1
So 912952-83-1 is a valid CAS Registry Number.

912952-83-1Downstream Products

912952-83-1Relevant articles and documents

Palladium-catalyzed coupling reaction of 3-bromo benzo[b]furan, -thiophene and -selenophene 2-carboxaldehyde. Preparation of tetracyclic heteroaromatic derivatives

Kirsch, Gilbert,Deprets, Stéphanie

, p. 427 - 430 (2007/10/03)

3-Oxo-2,3-dihydrobenzo[b]furans, -thiophenes and -selenophenes 1a-c afforded the bromo-aldehydes 2 under Vilsmeier-Haack-Arnold conditions. Palladium-catalysed aryl-aryl coupling of 2 with o-formyl-phenylboronic acid allowed the formation of dialdehydes 3 which underwent McMurry cyclisation or pinacol condensation to yield polycyclic aromatic derivatives 4 or the dihydroxylated compounds 5.

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