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1021864-90-3

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1021864-90-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1021864-90-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,1,8,6 and 4 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1021864-90:
(9*1)+(8*0)+(7*2)+(6*1)+(5*8)+(4*6)+(3*4)+(2*9)+(1*0)=123
123 % 10 = 3
So 1021864-90-3 is a valid CAS Registry Number.

1021864-90-3Downstream Products

1021864-90-3Relevant academic research and scientific papers

Preparation of aza-polycyclic aromatic compounds via superelectrophilic cyclizations

Li, Ang,Gilbert, Thomas M.,Klumpp, Douglas A.

, p. 3654 - 3657 (2008/09/20)

(Chemical Equation Presented) Alkenyl-substituted N-heterocycles react in superacidic CF3SO3H (triflic acid) to produce dicationic intermediates. These superelectrophiles undergo cyclizations to give varied aza-polycyclic aromatic compounds in generally good yields (27-99%, 16 examples). Theoretical calculations indicate a preference for charge-separated dicationic intermediates.

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