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154911-48-5

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154911-48-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 154911-48-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,4,9,1 and 1 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 154911-48:
(8*1)+(7*5)+(6*4)+(5*9)+(4*1)+(3*1)+(2*4)+(1*8)=135
135 % 10 = 5
So 154911-48-5 is a valid CAS Registry Number.

154911-48-5Relevant articles and documents

SYNTHESES DE CYCLOHEXENONES α-SUBSTITUEES VIA LA THERMOLYSE DE CETOSULFOXYDES TERTIAIRES

Barillier, Daniel,Benhida, Rachid,Vazeux, Michel

, p. 83 - 96 (2007/10/02)

The sulfenylation-dehydrosulfenylation method, combined with carbon-carbon bond forming reactions, has been applied to the synthesis of some α-functionalized cyclohexenones 3.Hence, the sodium anion of the 2-methylthiocyclohexanone in THF reacts with primary, allyl and benzyl halides as well as with Michael acceptors to lead to the tertiary ketosulfides 1a-j.Further oxidation by NaIO4 and thermolysis in boiling toluene of the resulting sulfoxides 2 have been performed.The scope and limitations of this strategy are also discussed. Key Words: α-functionalized cyclohexenones; tertiary ketosulfides and ketosulfoxides; sulfenylation and deshydrosulfenylation; thermolysis.

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