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120331-99-9

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120331-99-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 120331-99-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,0,3,3 and 1 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 120331-99:
(8*1)+(7*2)+(6*0)+(5*3)+(4*3)+(3*1)+(2*9)+(1*9)=79
79 % 10 = 9
So 120331-99-9 is a valid CAS Registry Number.

120331-99-9Relevant articles and documents

Selective intermolecular oxidative cross-coupling of enolates

Amaya, Toru,Maegawa, Yusuke,Masuda, Takaya,Osafune, Yuma,Hirao, Toshikazu

supporting information, p. 10072 - 10075 (2015/09/01)

Selective intermolecular oxidative cross-coupling of enolates, which is a bond-forming reaction between carbanion equivalents, remains as an unsolved issue despite its potential utility for the direct synthesis of unsymmetrical 1,4-diones. The main difficulty derives from the unavoidable homo-coupling. Our strategy depends on the selective one-electron oxidation of one enolate to afford an electrophilic carbonyl α-radical species, followed by trapping with another enolate. The present study demonstrates the selective oxovanadium(V)-induced cross-coupling between boron and silyl enolates.

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