Aharon, Cheryl published the artcileUsing fluoroform for constructing aromatic and heterocyclic trifluoromethylselenyl compounds, Recommanded Product: 2-Pyridinylboronic acid, the publication is Journal of Fluorine Chemistry (2021), 109866, database is CAplus.
Fluoroform is used to prepare CuCF3 according to literature procedures. This nucleophilic trifluoromethyl moiety was reacted with aromatic and heterocyclic selenium cyanide derivatives 3-R-4-N(R1)(R2)-5-R3C6H2SeCN (R = H, Me, Br; R1 = H, Et, Ac; R2 = H, Et, Ac; R3 = H, Me), 3-R4-4-R5-C6H3SeCN (R4 = H, Me; R5 = Me, t-Bu, Cl, etc.), I (R6 = H, Br; R7 = H, SeCN; R8 = H, SeCN) and II (X = O, S) resp. to form the corresponding trifluoromethylselenium compounds 3-R-4-N(R1)(R2)-5-R3C6H2SeCF3, 3-R4-4-R5-C6H3SeCF3, III (R9 = H, SeCF3; R10 = H, SeCF3) and IV. Selenium cyanides were made with 1,3-dicyanotriselenide prepared in situ from malononitrile and selenium dioxide. The electrophilicity of the reagent (δ+SeCN) was enough to attack aniline derivatives 3-R-4-N(R1)(R2)-5-R3C6H3 at the para position, but with other aromatics it was advantageous to use the corresponding boronic acids 3-R4-4-R5-C6H3B(OH)2, V (R11 = H, B(OH)2; R12 = H, B(OH)2) and VI as the moiety was easily displaced by the selenium cyanate moiety.
Journal of Fluorine Chemistry published new progress about 197958-29-5. 197958-29-5 belongs to pyridine-derivatives, auxiliary class Pyridine,Boronic acid and ester, name is 2-Pyridinylboronic acid, and the molecular formula is C5H6BNO2, Recommanded Product: 2-Pyridinylboronic acid.
Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem