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1581705-15-8

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1581705-15-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1581705-15-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,8,1,7,0 and 5 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1581705-15:
(9*1)+(8*5)+(7*8)+(6*1)+(5*7)+(4*0)+(3*5)+(2*1)+(1*5)=168
168 % 10 = 8
So 1581705-15-8 is a valid CAS Registry Number.

1581705-15-8Relevant articles and documents

Stereoselective construction of 2,8-dioxabicyclo[3.3.1]nonane/nonene systems from 3-C-branched glycals

Reddy, Gadi Madhusudhan,Sridhar, Perali Ramu

, p. 1496 - 1504 (2014/03/21)

A stereoselective approach for the formation of 2,8-dioxabicyclo[3.3.1] nonane/nonene frameworks through the formation of 3-C-branched glycals encompassing the Claisen rearrangement of the carbohydrate-derived allyl-vinyl ethers and TMSOTf-catalyzed acetalization reactions as key steps is revealed. A novel acetalization of 3-C-branched glycals with a tentative mechanism is proposed. The expedient protocol is evaluated by synthesizing a number of 2,8-dioxabicyclo[3.3.1]nonane/nonene architectures. An efficient, stereoselective intramolecular acetalization of 3-C-branched glycal derivatives to provide 2,8-dioxabicyclo[3.3.1]nonane/nonene frameworks is described. The generality of the reaction is investigated and a plausible mechanism is postulated. Copyright

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