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190724-36-8

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190724-36-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 190724-36-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,0,7,2 and 4 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 190724-36:
(8*1)+(7*9)+(6*0)+(5*7)+(4*2)+(3*4)+(2*3)+(1*6)=138
138 % 10 = 8
So 190724-36-8 is a valid CAS Registry Number.

190724-36-8Relevant articles and documents

Preparation of 2-oxazolidinones by intramolecular nucleophilic substitution

Van Delft, Floris L.,Timmers, Cornelis M.,Van Der Marel, Gijs A.,Van Boom, Jacques H.

, p. 450 - 454 (2007/10/03)

Treatment of N-alkoxycarbonyl, N-benzyl protected β-amino alcohols with triphenylphosphine and hexachloroethane in 1,2-dichloroethane induces cyclization to 2-oxazolidinones, which are formed by intramolecular attack with inversion of configuration at the secondary alcohol. In contrast, mono N-substituted alkyl carbamates undergo chlorination under the same conditions.

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