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1280218-05-4

1280218-05-4

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1280218-05-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1280218-05-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,0,2,1 and 8 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1280218-05:
(9*1)+(8*2)+(7*8)+(6*0)+(5*2)+(4*1)+(3*8)+(2*0)+(1*5)=124
124 % 10 = 4
So 1280218-05-4 is a valid CAS Registry Number.

1280218-05-4Downstream Products

1280218-05-4Relevant articles and documents

Copper-mediated trifluoromethylation of heteroaromatic compounds by trifluoromethyl sulfonium salts

Zhang, Cheng-Pan,Wang, Zong-Ling,Chen, Qing-Yun,Zhang, Chun-Tao,Gu, Yu-Cheng,Xiao, Ji-Chang

supporting information; experimental part, p. 1896 - 1900 (2011/04/16)

Copper is king! A convenient method for the synthesis of trifluoromethylated heteroaromatic compounds under mild conditions has been developed based on the observation that 1 can be reduced by certain metals (see scheme). Substrate 1 is assumed to be reduced by copper via a single-electron transfer mechanism, and CuCF3 is the most probable intermediate in this reaction. DMF=N,N-dimethylformamide, Tf=triflate.

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