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25083-95-8

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25083-95-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 25083-95-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,0,8 and 3 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 25083-95:
(7*2)+(6*5)+(5*0)+(4*8)+(3*3)+(2*9)+(1*5)=108
108 % 10 = 8
So 25083-95-8 is a valid CAS Registry Number.

25083-95-8Relevant articles and documents

SYNTHESIS AND REACTIONS OF 2-ARYL-8-OXABICYCLOOCT-6-EN-3-ONES

Mann, John,Wilde, Philip D.,Finch, Mark W.

, p. 5431 - 5442 (2007/10/02)

A number of 1-aryl-1-bromopropanones have been prepared and converted into the corresponding oxyallyl carbocations.These were reacted with furan to produce the expected 2-aryl-8-oxabicyclooct-6-en-3-ones, as well as a number of interesting side-products.These included 3-aryl-propanoic acid esters produced via Favorskii rearrangements.Attempts to cleave the ether linkage in the cycloadducts using bromotrimethylsilane produced instead 1-aryl-3-furylpropanones in excellent yield.

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