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1437798-90-7

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1437798-90-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1437798-90-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,3,7,7,9 and 8 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1437798-90:
(9*1)+(8*4)+(7*3)+(6*7)+(5*7)+(4*9)+(3*8)+(2*9)+(1*0)=217
217 % 10 = 7
So 1437798-90-7 is a valid CAS Registry Number.

1437798-90-7Downstream Products

1437798-90-7Relevant articles and documents

Copper-Catalyzed Aerobic Cascade Oxidative Coupling/Cyclization for the Construction of 1,4-Dihydropyridine Derivatives

Zhu, Zhi-Qiang,Xie, Zong-Bo,Le, Zhang-Gao

, p. 9449 - 9454 (2016/10/18)

An efficient copper-catalyzed cascade cyclization reaction for the preparation of polysubstituted 1,4-dihydropyridines between N-arylglycine esters and 1,3-dicarbonyl compounds using molecular oxygen as the terminal oxidant has been described. Various N-arylglycine esters 1 and 1,3-dicarbonyl compounds 2 were able to undergo the cascade reaction smoothly to afford the desired products 3 in satisfactory yields. The cascade reaction has the advantages of good functional group tolerance and mild reaction conditions. A possible mechanism has also been proposed on the basis of control experiments.

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