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1439377-39-5

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1439377-39-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1439377-39-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,3,9,3,7 and 7 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1439377-39:
(9*1)+(8*4)+(7*3)+(6*9)+(5*3)+(4*7)+(3*7)+(2*3)+(1*9)=195
195 % 10 = 5
So 1439377-39-5 is a valid CAS Registry Number.

1439377-39-5Downstream Products

1439377-39-5Relevant articles and documents

Preparation of aryl-substituted 2-oxyindoles by superelectrophilic chemistry

Naredla, Rajasekhar Reddy,Raja, Erum K.,Klumpp, Douglas A.

, p. 3245 - 3247 (2013/06/27)

A series of pyridyl-substituted 3-hydroxy-2-oxyindoles have been prepared and reacted with arenes in superacid promoted Friedel-Crafts reactions. The product aryl-substituted 2-oxyindoles are formed in generally good yields. With substituted arenes such as toluene, bromobenzene, or ethyl salicylate, the Friedel-Crafts reactions occur with excellent regioselectivity. A mechanism is proposed involving dicationic, superelectrophilic species leading to the electrophilic aromatic substitution chemistry.

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