Cas 133192-32-2,trans-7,8-dimethyl-trans-2,3-tetramethylene-1-phenyl-4,6,9-trioxa-1-azaspiro<4.4>nonane

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Check Digit Verification of cas no

The CAS Registry Mumber 133192-32-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,1,9 and 2 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 133192-32:
(8*1)+(7*3)+(6*3)+(5*1)+(4*9)+(3*2)+(2*3)+(1*2)=102
102 % 10 = 2
So 133192-32-2 is a valid CAS Registry Number.

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133192-32-2Relevant academic research and scientific papers

Stereocontrolled Oxazolidinone Formation by the Addition of 4,5-Disubstituted Iminodioxolane to Oxirane via a Spiro Compound

Baba, Akio,Seki, Kenji,Matsuda, Haruo

, p. 2684 - 2688 (2007/10/02)

4,5-Disubstituted 2-imino-1,3-dioxolanes readily add to oxiranes in the presence of AlCl3, furnishing 1,3-oxazolidin-2-ones in a stereospecific manner, where the configurations of oxiranes and iminodioxolanes are responsible for the configuration of products and the feasibility of the addition, respectively.A preliminary adduct, a spiro compound intermediate, is isolated, and its decomposition to oxazolidinone is demonstrated.

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