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1431726-26-9

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1431726-26-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1431726-26-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,3,1,7,2 and 6 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1431726-26:
(9*1)+(8*4)+(7*3)+(6*1)+(5*7)+(4*2)+(3*6)+(2*2)+(1*6)=139
139 % 10 = 9
So 1431726-26-9 is a valid CAS Registry Number.

1431726-26-9Downstream Products

1431726-26-9Relevant articles and documents

Catalytic asymmetric synthesis of pyrroloindolines via a rhodium(II)-catalyzed annulation of indoles

Spangler, Jillian E.,Davies, Huw M. L.

supporting information, p. 6802 - 6805 (2013/06/05)

Herein we report the synthesis of pyrroloindolines via a catalytic enantioselective formal [3+2] cycloaddition of C(3)-substituted indoles. This methodology utilizes 4-aryl-1-sulfonyl-1,2,3-triazoles as carbenoid precursors and the rhodium(II)-tetracarboxylate catalyst Rh2(S-PTAD) 4. A variety of aryl-substituted pyrroloindolines were prepared in good yields and with high levels of enantioinduction.

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