851179-02-7 Usage
General Description
3,4-Dichloro-5-fluoropyridine is a chemical compound with the molecular formula C5H2Cl2FN. It is a white to off-white solid that is primarily used as an intermediate in the synthesis of pharmaceuticals and agrochemicals. 3,4-Dichloro-5-fluoropyridine is known for its strong electronegative properties due to the presence of both chlorine and fluorine atoms in its structure. 3,4-Dichloro-5-fluoropyridine is also used as a building block for the development of new chemical compounds and can undergo various chemical reactions to create more complex molecules. It is important to handle and use this chemical compound with care, following proper safety protocols and regulations.
Check Digit Verification of cas no
The CAS Registry Mumber 851179-02-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,1,1,7 and 9 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 851179-02:
(8*8)+(7*5)+(6*1)+(5*1)+(4*7)+(3*9)+(2*0)+(1*2)=167
167 % 10 = 7
So 851179-02-7 is a valid CAS Registry Number.
InChI:InChI=1/C5H2Cl2FN/c6-3-1-9-2-4(8)5(3)7/h1-2H
851179-02-7Relevant articles and documents
Removal of fluorine from and introduction of fluorine into polyhalopyridines: An exercise in nucleophilic hetarenic substitution
Bobbio, Carla,Rausis, Thierry,Schlosser, Manfred
, p. 1903 - 1910 (2007/10/03)
Starting from six industrially available fluorinated pyridines, an expedient access to all three tetrafluoropyridines (2-4), all six trifluoropyridines (5-10), and the five non-commercial difluoropyridines (11-14 and 16) was developed. The methods employed for the selective removal of fluorine from polyfluoropyridines were the reduction by metals or complex hydrides and the site-selective replacement by hydrazine followed by dehydrogenation-dediazotation or dehydrochlorination-dediazotation. To introduce an extra fluorine atom, a suitable precursor was metalated and chlorinated before being subjected to a chlorine/ fluorine displacement process.
