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1452397-05-5

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1452397-05-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1452397-05-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,5,2,3,9 and 7 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1452397-05:
(9*1)+(8*4)+(7*5)+(6*2)+(5*3)+(4*9)+(3*7)+(2*0)+(1*5)=165
165 % 10 = 5
So 1452397-05-5 is a valid CAS Registry Number.

1452397-05-5Relevant articles and documents

Gold-catalyzed sequential activation of propargylic carboxylates: A facile route to benzoannulenes

Oh, Chang Ho,Kim, Ji Hee,Oh, Bu Keun,Park, Jong Ryul,Lee, Ji Ho

, p. 2592 - 2596 (2013/03/14)

A cascade reaction of 1-(2-(3-acetoxyprop-1-ynyl)phenyl)prop-2-ynyl acetate and its derivatives is catalyzed by gold to give the corresponding benzo[7]annulenes (see scheme) in excellent yields. A double activation of the gold catalyst toward two different propargylic carboxylates was proposed. Benzoannulenes were hydrolyzed to 8-hydroxybenzo[7]annulene-5-ones. Copyright

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