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1464776-39-3

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1464776-39-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1464776-39-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,6,4,7,7 and 6 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1464776-39:
(9*1)+(8*4)+(7*6)+(6*4)+(5*7)+(4*7)+(3*6)+(2*3)+(1*9)=203
203 % 10 = 3
So 1464776-39-3 is a valid CAS Registry Number.

1464776-39-3Downstream Products

1464776-39-3Relevant articles and documents

Cu-promoted oxidative trifluoromethylation of terminal alkynes with difluoromethylene phosphobetaine

Deng, Xiaoyun,Lin, Jinhong,Zheng, Jian,Xiao, Jichang

, p. 689 - 693 (2014/10/15)

Difluoromethylene phosphobetaine (Ph3P+CF 2CO2-, PDFA), a known difluorocarbene reagent, was found to be able to efficiently trifluoromethylate terminal alkynes in the presence of Cu(I) and potassium fluoride. The transformation proceeded smoothly to afford the corresponding trifluoromethylated acetylenes in moderate yields. A difluorocarbene precursor, difluoromethylene phosphobetaine (Ph 3P+CF2CO2-, PDFA) was found to be able to act as a trifluoromethylating reagent in the presence of fluoride. The oxidative trifluoromethylation of terminal alkynes with PDFA promoted by Cu(I) occurred smoothly to give the corresponding trifluoromethylated acetylenes in moderate yields. Copyright

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