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1431440-58-2

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1431440-58-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1431440-58-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,3,1,4,4 and 0 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1431440-58:
(9*1)+(8*4)+(7*3)+(6*1)+(5*4)+(4*4)+(3*0)+(2*5)+(1*8)=122
122 % 10 = 2
So 1431440-58-2 is a valid CAS Registry Number.

1431440-58-2Downstream Products

1431440-58-2Relevant articles and documents

New Highlights in the Synthesis of 4-Aryl-1,4-dihydropyrazines

He, Jing-Yu,Song, Xiu-Qing,Yan, Hong,Zhong, Ru-Gang

, p. 1357 - 1361 (2013/02/23)

The 4-aryl-1,4-dihydropyrazines were prepared via the cyclization of N,N-bisalkylated anilines with ammonium acetate. These reactions were aided by improvements in the synthesis of N,N-bisalkylated anilines which were alkylated with anilines using ethyl 2-diazo acetoacetate in a reaction catalyzed by rhodium acetate in the absence of oxygen. A possible mechanistic route is postulated on the basis of the isolation of the N-alkylation intermediates, which were determined to be N-aryloxamates by 1H NMR data and X-ray diffraction.

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