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148759-64-2

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148759-64-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 148759-64-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,8,7,5 and 9 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 148759-64:
(8*1)+(7*4)+(6*8)+(5*7)+(4*5)+(3*9)+(2*6)+(1*4)=182
182 % 10 = 2
So 148759-64-2 is a valid CAS Registry Number.

148759-64-2Relevant articles and documents

Synthesis of Homochiral 3-Oxa-2,7-diazabicyclooctanes from Amino Acids by Intramolecular 1,3-Dipolar Cycloaddition of Nitrones

Aurich, Hans Guenter,Frenzen, Gerlinde,Gentes, Christian

, p. 787 - 796 (2007/10/02)

N-Allylamino alcohols 9 were prepared from amino acids by various methods.Swern oxidation of 9 afforded aldehydes 11.By reaction of 11 with N-alkylhydroxylamines nitrone intermediates 4 were formed which spontaneously underwent an intramolecular 1,3-dipolar cycloaddition to yield the bicyclic compounds 6.The cycloaddition proceeds diastereoselectively furnishing homochiral compounds 6 from homochiral starting materials.The structure of 6aA was confirmed by X-ray structural analysis. Key Words: Heterobicyclooctanes, homochiral / Amino acids / Nitrones / Cycloadditions, diastereoselective, intramolecular

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