698-51-1 Usage
Synthesis
Historically, potassium fluoride has been? used with solvents to perform the Halex reaction and Finger and Kruse established the? use of polar aprotic solvents in the Halex reaction, with DMSO and DMF being used for the conversion of 2,3,5,6-tetrachloropyridine to 3 ,5-dichloro-2,6-difluoropyridine.
Check Digit Verification of cas no
The CAS Registry Mumber 698-51-1 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,9 and 8 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 698-51:
(5*6)+(4*9)+(3*8)+(2*5)+(1*1)=101
101 % 10 = 1
So 698-51-1 is a valid CAS Registry Number.
InChI:InChI=1/C8H7FO2/c1-11-8-3-6(5-10)2-7(9)4-8/h2-5H,1H3
698-51-1Relevant articles and documents
Catalyst-Free Hydrodefluorination of Perfluoroarenes with NaBH4
Schoch, Timothy D.,Mondal, Mukulesh,Weaver, Jimmie D.
supporting information, p. 1588 - 1593 (2021/03/03)
Presented is an economical means of removing fluorine from various highly fluorinated arenes using NaBH4. The procedure was adapted for different classes of perfluoroarenes. A novel isomer of an emerging class of organic dyes based on the carbazole phthalonitrile motif was succinctly synthesized in two steps from tetrafluorophthalonitrile, demonstrating the utility of the hydrodefluorination procedure. Initial exploration of the dye shows it to be photoactive and capable of facilitating contrathermodynamic styrenoid E/Z isomerization.
