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1025708-69-3

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1025708-69-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1025708-69-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,5,7,0 and 8 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1025708-69:
(9*1)+(8*0)+(7*2)+(6*5)+(5*7)+(4*0)+(3*8)+(2*6)+(1*9)=133
133 % 10 = 3
So 1025708-69-3 is a valid CAS Registry Number.

1025708-69-3Relevant articles and documents

Reductive openings of acetals: Explanation of regioselectivity in borane reductions by mechanistic studies

Johnsson, Richard,Olsson, Dan,Ellervik, Ulf

, p. 5226 - 5232 (2008/12/21)

(Graph Presented) The mechanisms of regioselective reductive openings of acetals were investigated in several model systems by a combination of Hammett plots, kinetic experiments, density functional calculations, and 11B NMR. The regioselectivity of borane reductions of cyclic acetals can be controlled by the choice of borane. Lewis acid activation of BH3·NMe 3 increases the reaction rate and renders the borane the most electrophilic species, which associates to the more electron-rich oxygen of the acetal. In contrary, without activation, the regioselectivity is instead directed by the Lewis acid, as exemplified by the reaction with BH 3·THF.

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