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15898-58-5

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15898-58-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 15898-58-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,5,8,9 and 8 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 15898-58:
(7*1)+(6*5)+(5*8)+(4*9)+(3*8)+(2*5)+(1*8)=155
155 % 10 = 5
So 15898-58-5 is a valid CAS Registry Number.

15898-58-5Downstream Products

15898-58-5Relevant articles and documents

Diol desymmetrization as an approach to the synthesis of unsymmetrical dienyl diesters

Phillips, David J.,Pillinger, Kathryn S.,Li, Wei,Taylor, Angela E.,Graham, Andrew E.

, p. 10528 - 10533 (2008/02/13)

The tandem oxidation/Wittig olefination of unactivated diols utilizing manganese dioxide produces α,β-unsaturated hydroxy esters in high yields in a highly effective desymmetrization process. The formation of small quantities of the corresponding lactones suggests that the reaction may proceed through a lactol intermediate in some cases. The α,β-unsaturated hydroxy esters are transformed into symmetrical or unsymmetrical dienyl diesters using a second oxidation/Wittig olefination sequence mediated by PCC.

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