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290356-69-3

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290356-69-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 290356-69-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,0,3,5 and 6 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 290356-69:
(8*2)+(7*9)+(6*0)+(5*3)+(4*5)+(3*6)+(2*6)+(1*9)=153
153 % 10 = 3
So 290356-69-3 is a valid CAS Registry Number.

290356-69-3Relevant articles and documents

An investigation of the behaviour of α,β-unsaturated sulfoxides in the presence of trimethylsilyl iodide

Aversa, Maria C.,Barattucci, Anna,Bonaccorsi, Paola,Giannetto, Placido

, p. 10145 - 10150 (2002)

A mild, efficient and seemingly general method for converting α,β-unsaturated sulfoxides into carbonyl compounds by means of trimethylsilyl iodide (TMSI) is described. Experiments on different substrates and trimethylsilyl halides lead to the conclusion that the oxidation state of the sulfur atom, on one hand, and halogen kind in TMSX on the other, assume a determining role in the progression of the reaction. The ease of experimental procedure, the possibility of 1H NMR monitoring, and good yields of final products constitute advantages of the TMSI-promoted conversion of α,β-unsaturated sulfoxides into carbonyl compounds.

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