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106013-01-8

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106013-01-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 106013-01-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,6,0,1 and 3 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 106013-01:
(8*1)+(7*0)+(6*6)+(5*0)+(4*1)+(3*3)+(2*0)+(1*1)=58
58 % 10 = 8
So 106013-01-8 is a valid CAS Registry Number.

106013-01-8Downstream Products

106013-01-8Relevant articles and documents

Cycloaddition of Benzodiazepine Nitrones to Alkynes: Synthesis and X-Ray Analysis of Some Tricyclic Quinoxalines.

Capozzi, Giuseppe,Ottana, Rosaria,Romeo, Giovanni,Sindona, Giovanni,Uccella, Nicola,Valle, Giovanni

, p. 2026 - 2048 (2007/10/02)

7-Chloro-2-methylamino-5-phenyl-3H-benzodiazepine 4-oxide (chlordiazepoxide) undergoes 1,3-dipolar cycloaddition to electron-deficient alkynes yielding condensed 4-isoxazoline benzodiazepine and pyrrole-fused quinoxaline derivatives.The structure of the reaction products was determined by analytical and spectroscopic methods with the application of LIS and X-ray analysis.The overall process involves an initial addition step, the rate determing one, followed by ring-opening of the 4-isoxazoline intermediate, ring-contraction of the seven-membered nucleus to the quinoxaline system, and subsequent condensation to the tricyclic derivatives.The suitable stereochemistry and the N-O vinylic functionality, forming a good leaving group in the 4-isoxazolines, drive the 1,2-bond migration from carbon to the electron-deficient nitrogen atom of the benzodiazepine ring.The energetics of the condensation steps are discussed on the basis of thermochemical considerations postulating a kinetic effect for the pyrrole-ring closure due to the extended delocalization of the enolate intermediate.

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