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898821-48-2

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898821-48-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 898821-48-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,9,8,8,2 and 1 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 898821-48:
(8*8)+(7*9)+(6*8)+(5*8)+(4*2)+(3*1)+(2*4)+(1*8)=242
242 % 10 = 2
So 898821-48-2 is a valid CAS Registry Number.

898821-48-2Relevant articles and documents

Direct intramolecular arylation of aldehydes promoted by reaction with IPy2BF4/HBF4: Synthesis of benzocyclic ketones

Barluenga, Jose,Trincado, Monica,Rubio, Eduardo,Gonzalez, Jose M.

, p. 3140 - 3143 (2007/10/03)

(Chemical Equation Presented) Iodine helps: Aldehydes acylate arenes upon treatment at low temperature with IPy2BF4 and HBF 4. This reaction is exploited in a novel intramolecular approach to the preparation of benzocyclic ketones (see scheme). A plausible mechanistic rational is also given.

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