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22319-19-3

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22319-19-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 22319-19-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,3,1 and 9 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 22319-19:
(7*2)+(6*2)+(5*3)+(4*1)+(3*9)+(2*1)+(1*9)=83
83 % 10 = 3
So 22319-19-3 is a valid CAS Registry Number.

22319-19-3Downstream Products

22319-19-3Relevant articles and documents

Synthesis of Acyl Fluorides via DAST-Mediated Fluorinative C-C Bond Cleavage of Activated Ketones

Kim, Danhee,Lim, Hee Nam

supporting information, p. 7465 - 7469 (2020/10/09)

A new protocol for preparation of acyl fluorides was developed by recognizing activated ketones as starting materials. The method provides a different scope compared with previously reported methods that employ carboxylic acids as substrates. A working hypothesis of pull-and-push-driven fluorinative C-C bond cleavage was successfully demonstrated by the simple addition of diethylaminosulfur trifluoride (DAST) derivatives to α-oximinoketones. The designed reaction system led to a highly efficient and chemoselective reaction. The wide availability of the ketones allowed for a range of synthetically useful aryloyl and aliphatic acyl fluorides including those containing chiral skeletons. The method is mild, fast, scalable, and potentially one-pot operative.

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