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1439365-74-8

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1439365-74-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1439365-74-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,3,9,3,6 and 5 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1439365-74:
(9*1)+(8*4)+(7*3)+(6*9)+(5*3)+(4*6)+(3*5)+(2*7)+(1*4)=188
188 % 10 = 8
So 1439365-74-8 is a valid CAS Registry Number.

1439365-74-8Upstream product

1439365-74-8Downstream Products

1439365-74-8Relevant articles and documents

Chemoselective Mono- And Difluorination of 1,3-Dicarbonyl Compounds

Cui, Ying,Jiao, Jingchao,Ma, Xiantao,Rao, Weihao,Tang, Lin,Yang, Zhen,Zhou, Qiuju,Zhou, Yuqiang,Zou, Guodong

supporting information, (2019/08/26)

By altering the amount of Selectfluor, the highly selective mono- and difluorination of 1,3-dicarbonyl compounds has been achieved, affording a variety of 2-fluoro- and 2,2-difluoro-1,3-dicarbonyl compounds in good to excellent yields. The reaction can be readily performed in aqueous media without any catalyst and base, which features practical and convenient fluorination. Importantly, a gram-scale reaction, transformation of 2-fluoro-1,3-diphenylpropane-1,3-dione to 4-fluoro-1,3,5-triphenyl-1H-pyrazole, and chlorination and bromination of 1,3-dicarbonyl compounds are realized to further exhibit its synthetic utility.

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