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25276-09-9

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25276-09-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 25276-09-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,2,7 and 6 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 25276-09:
(7*2)+(6*5)+(5*2)+(4*7)+(3*6)+(2*0)+(1*9)=109
109 % 10 = 9
So 25276-09-9 is a valid CAS Registry Number.

25276-09-9Relevant articles and documents

SELECTIVE REDUCTION OF TERTIARY ALKYL, BENZYL, AND ALLYL HALIDES TO HYDROCARBONS USING LITHIUM 9,9-DI-N-BUTYL-9-BORABICYCLONONANATE

Toi, Hiroo,Yamamoto, Yoshinori,Sonoda, Akio,Murahashi, Shun-Ichi

, p. 2261 - 2268 (1981)

The title 9-borabicyclononane(9-BBN) ate complex (1) brings about selective removal of tertiary alkyl, benzyl, and allyl halides to give the corresponding hydrocarbons in excellent yields without concomitant attack on secondary, primary and aryl derivatives.The reduction of cis- and trans-4-t-butyl-1-methylcyclohexyl chlorides (2) with 1 gives 4-t-butyl-1-methylcyclohexanes (3) with partial inversion of configuration in cyclohexane, while that in benzene gives thermodynamically trans-3 predominantly.The reactions of 1,1-dimethyl-5-hexenyl chloride (4) and 1,7,7-trimethylbicyclohept-2-yl chloride (8) with 1 proceed with the rearrangements characteristic to a carbonium ion intermediate.The reduction of 1-ethyl-1-methylpentyl chloride with 1 follows a second-order rate equation.

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