Ermolenko, Mikhail S. published the artcilePyrazole-3/5-carboxylic acids from 3/5-trifluoromethyl NH-pyrazoles, HPLC of Formula: 866638-72-4, the publication is Tetrahedron (2013), 69(1), 257-263, database is CAplus.
The transformations of substituted 3/5-trifluoromethylpyrazoles to the corresponding NH-pyrazole-3/5-carboxylic acids are reported. Moreover, from 4- or 5-iodinated-3/5-trifluoromethylpyrazoles building blocks and the use of Suzuki-Miyaura or Negishi reactions followed by the trifluoromethyl hydrolysis, we illustrate short and original accesses to many series of NH-pyrazole-3/5-carboxylic acids otherwise difficult to prepare
Tetrahedron published new progress about 866638-72-4. 866638-72-4 belongs to iodides-buliding-blocks, auxiliary class Trifluoromethyl,Pyrazole,Fluoride,Iodide, name is 4-Iodo-3-(trifluoromethyl)-1H-pyrazole, and the molecular formula is C4H2F3IN2, HPLC of Formula: 866638-72-4.
Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com