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1232774-87-6

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1232774-87-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1232774-87-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,2,7,7 and 4 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1232774-87:
(9*1)+(8*2)+(7*3)+(6*2)+(5*7)+(4*7)+(3*4)+(2*8)+(1*7)=156
156 % 10 = 6
So 1232774-87-6 is a valid CAS Registry Number.

1232774-87-6Relevant articles and documents

Zwitterionic Phosphoranides as Intermediates in the Reaction of Phosphorus Tribromide with N,N-Dimethyl-N′-arylformamidines

Marchenko, Anatoliy P.,Koidan, Georgyi N.,Hurieva, Anastasia N.,Rozhenko, Alexander B.,Kostyuk, Aleksandr N.

, p. 12 - 22 (2016/02/09)

Cyclic zwitterionic phosphoranides 2a,b were found to be intermediate products in the reaction of N,N-dimethyl-N′-(aryl)formamidines with PBr3. The structure of phosphoranide 2a was determined by means of the X-ray and quantum chemistry investigations. Mechanism of its formation was proposed based on Density functional theory (DFT) calculations. Reactions of 2 with amines and selenium yielded either C-phosphorylated formamidines or benzazaphospholes. The first example of intramolecular heterocyclization of a pentavalent phosphorus derivative 15b into 3Cyrillic capital letter en-1,3-benzazaphosphole has been demonstrated.

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