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1413576-43-8

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1413576-43-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1413576-43-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,1,3,5,7 and 6 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1413576-43:
(9*1)+(8*4)+(7*1)+(6*3)+(5*5)+(4*7)+(3*6)+(2*4)+(1*3)=148
148 % 10 = 8
So 1413576-43-8 is a valid CAS Registry Number.

1413576-43-8Downstream Products

1413576-43-8Relevant articles and documents

An efficient synthesis of symmetric and unsymmetric bis-(β- aminoamides) via Ugi multicomponent reaction

La Spisa, Fabio,Feo, Alberto,Mossetti, Riccardo,Tron, Gian Cesare

, p. 6044 - 6047 (2013/02/23)

A library of symmetrical and unsymmetrical bis-(β-aminoamides) has been prepared starting from symmetrical secondary diamines by using a double Ugi four-component reaction. A sacrifical Mumm rearrangement, thanks to the use of 2-hydroxymethyl benzoic acid, is necessary to suppress the competing split-Ugi reaction, increasing the yield and simplifying the purification step. The scope, the reaction conditions, and the role of water in trapping the nitrilium intermediate are also discussed.

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