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1242061-60-4

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1242061-60-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1242061-60-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,2,0,6 and 1 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1242061-60:
(9*1)+(8*2)+(7*4)+(6*2)+(5*0)+(4*6)+(3*1)+(2*6)+(1*0)=104
104 % 10 = 4
So 1242061-60-4 is a valid CAS Registry Number.

1242061-60-4Downstream Products

1242061-60-4Relevant articles and documents

Efficient and general synthesis of 3-aminoindolines and 3-aminoindoles via copper-catalyzed three-component coupling reaction

Chernyak, Dmitri,Chernyak, Natalia,Gevorgyan, Vladimir

supporting information; experimental part, p. 961 - 966 (2010/07/13)

An efficient three-component coupling (TCC) reaction toward a variety of 3-aminoindoline and 3-aminoindole derivatives has been developed. This cascade transformation proceeds via the copper-catalyzed coupling reaction between 2-aminobenzaldehyde, a secondary amine, and an alkyne leading to a propargylamine intermediate which, under the reaction conditions, undergoes cyclization into the indoline core. The latter, upon treatment with a base, smoothly isomerizes into the indole. Alternatively, the indole can directly be synthesized in a one-pot sequential reaction.

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