Development of a Rhodium(II)-Catalyzed Chemoselective C(sp<sup>3</sup>)H Oxygenation
作者:Yun Lin、Lei Zhu、Yu Lan、Yu Rao
DOI:10.1002/chem.201502140
日期:2015.10.12
We report the first example of RhII‐catalyzed chemoselective double C(sp3)Hoxygenation, which can directly transform various toluene derivatives into highly valuable aromatic aldehydes with great chemoselectivity and practicality. The critical combination of catalyst Rh(OAc)2, oxidant Selectfluor, and solvents of TFA/TFAA promises the successful delivery of the oxidation with satisfactory yields
Novel 5-amino or substituted amino 1,2,3-triazoles are disclosed as having anticoccidial activity. The compounds are useful for controlling coccidiosis when administered in minor quantities to animals, in particular to poultry, usually in admixture with animal sustenance.
Manganese catalyzed asymmetric transfer hydrogenation of hindered ketones bearing a 2,6-disubstituted phenyl group
作者:Lixian Wang、Qiangsheng Sun、Bingyang Wang、Xiangyun Meng、Wei Sun
DOI:10.1016/j.jcat.2024.115680
日期:2024.10
We describe here a manganese-catalyzed asymmetric transfer hydrogenation of hindered ketones containing 2,6-disubstituted phenyl group. This method is enabled by using a readily available chiral aminobenzimidazole manganese(I) complex as the catalyst in combination with ammonia borane compounds as the hydrogen source (especially, dimethylamine borane), producing the chiral alcohols with up to 99 %