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1332703-43-1

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1332703-43-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1332703-43-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,2,7,0 and 3 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1332703-43:
(9*1)+(8*3)+(7*3)+(6*2)+(5*7)+(4*0)+(3*3)+(2*4)+(1*3)=121
121 % 10 = 1
So 1332703-43-1 is a valid CAS Registry Number.

1332703-43-1Relevant articles and documents

Pd-catalyzed regiocontrolled Sonogashira and Suzuki cross-coupling reaction of 3,6-dihalogenoimidazo[1,2-a]pyridines: One-pot double-coupling approach

El Akkaoui, Ahmed,Bassoude, Ibtissam,Koubachi, Jamal,Berteina-Raboin, Sabine,Mouaddib, Abderrahim,Guillaumet, Gerald

, p. 7128 - 7138 (2011/10/05)

New and efficient regioselective Sonogashira and Suzuki-Miyaura palladium-catalyzed coupling reactions of 3,6-dihalogenoimidazo[1,2-a]pyridines followed by another cross-coupling has been successfully developed. Various solvents, palladium species and bases were tested. Scope and limitations of this regiocontrolled palladium-catalyzed reaction were investigated. The synthesis of 3,6-disubstituted imidazo[1,2-a]pyridine derivatives using one-pot regioselective double-coupling approach was developed. This procedure affords convergent syntheses of polysubstituted compounds in high yields in a very few steps.

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