Zhou, Jun published the artcilePhosphine-free ruthenium complexes supported by a pincer ligand bearing 1,2-dihydropyrimidine for Oppenauer-type oxidation of secondary alcohols, HPLC of Formula: 930-36-9, the publication is Journal of Organometallic Chemistry (2022), 122323, database is CAplus.
Treatment of the (diethylaminomethyl-picolyl)pyrazolium (A3) with NaOH in dichloromethane affords the pincer ligand (L) bearing a 1,2-dihydropyrimidine unit. Reaction of [RuCl2(DMSO)4] and the ligand (L) affords the complex [RuCl2(L)(DMSO)] (Ru1). Removal of the chlorides from Ru1 with either NaBF4 or KPF6 in CH3CN produces the complexes [Ru(L)(CH3CN)3](BF4)2 (Ru2) and [Ru(L)(CH3CN)3](PF6)2 (Ru3), resp. Ru2 has been characterized with X-ray crystallog. All of the new ruthenium complexes (Ru1-Ru3) are catalytically active in the Oppenauer-type oxidation of secondary alcs. Among them, the complex Ru1 is the most active. Steric effects were observed from the outcome of substituted acetophenones.
Journal of Organometallic Chemistry published new progress about 930-36-9. 930-36-9 belongs to pyrazoles-derivatives, auxiliary class Pyrazole, name is 1-Methylpyrazole, and the molecular formula is C3H8N2S, HPLC of Formula: 930-36-9.
Referemce:
https://en.wikipedia.org/wiki/Pyrazole,
Pyrazoles – an overview | ScienceDirect Topics