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479421-97-1

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479421-97-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 479421-97-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,7,9,4,2 and 1 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 479421-97:
(8*4)+(7*7)+(6*9)+(5*4)+(4*2)+(3*1)+(2*9)+(1*7)=191
191 % 10 = 1
So 479421-97-1 is a valid CAS Registry Number.

479421-97-1Relevant articles and documents

Diastereoselective Monofluorocyclopropanation Using Fluoromethylsulfonium Salts

Melngaile, Renate,Sperga, Arturs,Baldridge, Kim K.,Veliks, Janis

, p. 7174 - 7178 (2019/09/12)

Diarylfluoromethylsulfonium salts, alternatives to freons or advanced fluorinated building blocks, are bench stable and easy-to-use sources of direct fluoromethylene (:CHF) transfer to alkenes. These salts enabled development of a trans-selective monofluorinated Johnson-Corey-Chaykovsky reaction with vinyl sulfones or vinyl sulfonamides to access synthetically challenging monofluorocyclopropane scaffolds. The described method offers rapid access to monofluorinated cyclopropane building blocks with further functionalization opportunities to deliver more complex synthetic targets diastereoselectively.

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