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219697-93-5

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219697-93-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 219697-93-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,9,6,9 and 7 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 219697-93:
(8*2)+(7*1)+(6*9)+(5*6)+(4*9)+(3*7)+(2*9)+(1*3)=185
185 % 10 = 5
So 219697-93-5 is a valid CAS Registry Number.

219697-93-5Downstream Products

219697-93-5Relevant articles and documents

Highly diastereoselective synthesis of 1,2-amino alcohols via nucleophilic addition of organocerium reagents to 4- and 5- oxazolidinonecarbaldehydes

Wee, Andrew G. H.,Tang, Fuxing

, p. 1070 - 1081 (2007/10/03)

The reaction of chiral, non-racemic 4- and 5- oxazolidinonecarbaldehydes, 6 and 13, with organocerium reagents proceeds efficiently with good to excellent diastereoselectivity to give syn and anti alcohols, respectively. A model to explain the observed diastereoselectivity of the reaction of 6 and 13 is provided. The utility of this method for the synthesis of amino alcohols is exemplified by the synthesis of C-18-D-ribo- phytosphingosine from the anti alcohol 14f.

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