New Advances in Chemical Research, May 2021. The prevalence of solvent effects in heterogeneous catalysis in condensed media has motivated developing quantitative kinetic and spectroscopic. An article , which mentions category: chiral-oxygen-ligands, molecular formula is C17H14O. The compound – 1,5-Diphenylpenta-1,4-dien-3-one played an important role in people’s production and life., category: chiral-oxygen-ligands
A zirconium borohydride piperazine complex (Ppyz)Zr(BH4) 2Cl2, obtained by the reaction of an ethereal solution of ZrCl4 and LiBH4 with piperazine is a stable, selective and efficient reducing agent. (Ppyz)Zr(BH4)2Cl 2 reduces aldehydes, ketones, silylethers, alpha, beta-unsaturated carbonyl compounds and esters. The reactions were performed in diethyl ether at room temperature or under reflux, and the yields of the corresponding alcohols were excellent. The selective reduction of aldehydes in the presence of ketones and complete regioselectivity in the reduction of alpha,beta-unsaturated carbonyl groups were observed.
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Reference：
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate