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1640122-86-6

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1640122-86-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1640122-86-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,4,0,1,2 and 2 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1640122-86:
(9*1)+(8*6)+(7*4)+(6*0)+(5*1)+(4*2)+(3*2)+(2*8)+(1*6)=126
126 % 10 = 6
So 1640122-86-6 is a valid CAS Registry Number.

1640122-86-6Downstream Products

1640122-86-6Relevant articles and documents

Regioselective hydroarylation reactions of C3 electrophilic N-acetylindoles activated by FeCl3: An entry to 3-(Hetero)arylindolines

Beaud, Rodolphe,Guillot, Regis,Kouklovsky, Cyrille,Vincent, Guillaume

supporting information, p. 7492 - 7500 (2014/06/23)

A method for the direct and rare umpolung of the 3 position of indoles is reported. The activation of N-acetylindole with iron(III) chloride allows the C-H addition of aromatic and heteroaromatic substrates to the C2-C3 double bond of the indole nucleus to generate a quaternary center at C3 and leads regioselectively to 3-arylindolines. Optimization, scope (50 examples), practicability (gram scale, air atmosphere, room temperature), and mechanistic insights of this process are presented. Synthetic transformations of the indoline products into drug-like compounds are also described.

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