An efficient method for carbon–nitrogen bond formation between ally silyl ethers and N , N -acyltosylhydrazine was developed under very mild conditions using 2 mol% of mercuric triflate [Hg(OTf) 2 ] as a catalyst. This method does not require the use of any ligand system or supplementary additives and is applicable to the preparation of various N -allylhydrazides with good to excellent yields.
使用 2 mol% 的三氟甲磺酸汞 [Hg(OTf) 2 ] 作为催化剂,在非常温和的条件下开发了一种在烯丙基甲硅烷基醚和 N , N - 酰基甲苯基肼之间形成碳 - 氮键的有效方法。该方法不需要使用任何配体系统或辅助添加剂,适用于制备各种N-烯丙基酰肼,收率良好。
Diastereoselective reduction of acyclic hydroxyketones and diketones with an indium hydride reagent
Hydroxyketones and diketones have been reduced with lithium indium hydride to give meso-diols selectively. α-Hydroxyketones and α-diketones are reduced to meso-1,2-diols with high diastereoselectivities, whereas the selectivities of β-hydroxyketones and β-diketones are less satisfactory.