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914451-11-9

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914451-11-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 914451-11-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,4,4,5 and 1 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 914451-11:
(8*9)+(7*1)+(6*4)+(5*4)+(4*5)+(3*1)+(2*1)+(1*1)=149
149 % 10 = 9
So 914451-11-9 is a valid CAS Registry Number.

914451-11-9Relevant articles and documents

Single diastereomers of polyhydroxylated 9-Oxa-1-azabicyclo[4.2.1]nonanes from intramolecular 1,3-dipolar cycloaddition of ω-unsaturated nitrones

Padar, Petra,Bokros, Attila,Paragi, Gabor,Forgo, Peter,Kele, Zoltan,Howarth, Nicola M.,Kovacs, Lajos

, p. 8669 - 8672 (2007/10/03)

8-Benzyloxymethyl-3,4,5-tribenzoyloxy-9-oxa-1-azabicyclo[4.2.1]nonane has been prepared as the single diastereoisomer 8 from an intramolecular 1,3-dipolar cycloaddition involving 2-(benzyloxy)acetaldehyde and ω-unsaturated hydroxylamine 7 derived from methyl α-D-glucopyranoside. The analogous 8-methoxycarbonyl 9-oxa-1-azabicyclo[4.2.1]nonane was afforded in a similar manner, from methyl D-galactopyranoside and methyl glyoxylate, as a 3:1 mixture of diastereoisomers 15 and 16. When conducted in achiral ionic liquid 17 this ratio increased to 8:1, and in chiral ionic liquid 18, compound 15 was formed exclusively.

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