《Photocatalytic site-selective C-H difluoroalkylation of aromatic aldehydes》 was published in Chemical Communications (Cambridge, United Kingdom) in 2020. These research results belong to Tang, Wei-Ke; Tang, Fei; Xu, Jun; Zhang, Qi; Dai, Jian-Jun; Feng, Yi-Si; Xu, Hua-Jian. Name: fac-Tris(2-phenylpyridine)iridium The article mentions the following:
The direct photocatalyzed para-selective CAr-H difluoroalkylation of aromatic aldehyde derivatives has been accomplished using a newly explored catalytic system. In addition, when using para-substituted benzaldehydes as substrates, ortho-selective CAr-H difluoroalkylation was also accomplished. It is worth noting that all the above site-selectivity is opposite to traditional Friedel-Crafts reactions of aromatic aldehydes. The preliminary mechanistic investigations indicate that an electrophilic difluoroalkyl radical is involved in the catalytic cycle.fac-Tris(2-phenylpyridine)iridium(cas: 94928-86-6Name: fac-Tris(2-phenylpyridine)iridium) was used in this study.
fac-Tris(2-phenylpyridine)iridium(cas: 94928-86-6) belongs to pyridine. In industry and in the lab, pyridine is used as a reaction solvent, particularly when its basicity is useful, and as a starting material for synthesizing some herbicides, fungicides, and antiseptics.Name: fac-Tris(2-phenylpyridine)iridium