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915144-99-9

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915144-99-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 915144-99-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,5,1,4 and 4 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 915144-99:
(8*9)+(7*1)+(6*5)+(5*1)+(4*4)+(3*4)+(2*9)+(1*9)=169
169 % 10 = 9
So 915144-99-9 is a valid CAS Registry Number.

915144-99-9Relevant articles and documents

Stepwise mechanism for the bromination of arenes by a hypervalent iodine reagent

Arrieta, Ana,Cossío, Fernando P.,Granados, Albert,Shafir, Alexandr,Vallribera, Adelina

, p. 2142 - 2150 (2020/03/11)

A mild, metal-free bromination method of arenes has been developed using the combination of bis(trifluoroacetoxy)iodobencene and trimethylsilyl bromide. In situ-formed dibromo(phenyl)-λ3-iodane (PhIBr2) is proposed as the reactive intermediate. This methodology using PIFA/TMSBr has been applied with success to a great number of substrates (25 examples). The treatment of mono-substituted activated arenes led to para-brominated products (2u-z) in excellent 83-96% yields. Density functional theory calculations indicate a stepwise mechanism involving a double bromine addition followed by a type II dyotropic reaction with concomitant re-aromatization of the six-membered ring.

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