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174392-41-7

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174392-41-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 174392-41-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,4,3,9 and 2 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 174392-41:
(8*1)+(7*7)+(6*4)+(5*3)+(4*9)+(3*2)+(2*4)+(1*1)=147
147 % 10 = 7
So 174392-41-7 is a valid CAS Registry Number.

174392-41-7Downstream Products

174392-41-7Relevant articles and documents

Stereoselective Synthesis of (1R,2S)-2-Amino-1,3-diols from (R)-Cyanohydrins

Effenberger, Franz,Gutterer, Beate,Syed, Jana

, p. 2933 - 2944 (2007/10/03)

Vinyl substituted (1R,2S)-amino alcohols 5 were obtained by addition of vinyl magnesium bromide to the corresponding cyanohydrin O-trimethylsilyl ethers (R)-2.The O- and N-protected vinyl amino alcohols 6 were ozonized at -78 deg C in methanol yielding (1R,2S)-2-amino-1,3-diols 7 in high enantiomeric and diastereomeric excesses.For purification, compounds 7 in some cases were acetylated to give the derivatives (1R,2S)-8.Racemic 6a was converted by oxidative ozonolysis at -78 deg C in methanolic NaOH solution to the corresponding methyl N-acetyl-β-hydroxy propanoate 9a.The configuration of (1R,2S)-8a was confirmed by x-ray crystallographic analysis.

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