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1131890-88-4

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1131890-88-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1131890-88-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,3,1,8,9 and 0 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1131890-88:
(9*1)+(8*1)+(7*3)+(6*1)+(5*8)+(4*9)+(3*0)+(2*8)+(1*8)=144
144 % 10 = 4
So 1131890-88-4 is a valid CAS Registry Number.

1131890-88-4Downstream Products

1131890-88-4Relevant articles and documents

Transition-Metal-Free C3 Arylation of Indoles with Aryl Halides

Chen, Ji,Wu, Jimmy

supporting information, p. 3951 - 3955 (2017/03/27)

We report an unprecedented transition metal-free coupling of indoles with aryl halides. The reaction is promoted by KOtBu and is regioselective for C3 over N. The use of degassed solvents devoid of oxygen is necessary for the success of the transformation. Preliminary studies implicate a hybrid mechanism that involves both aryne intermediates and non-propagative radical processes. Electron transfer is also a distinct possibility. These conclusions were substantiated by EPR data, isotopic labeling studies, and the use of radical scavengers and electron transfer inhibitors.

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