我们在此报告的第一一般催化系统用于直接合成的N-取代的γ-和δ-内酰胺通过酮酸(包括乙酰丙酸)与腈和H还原胺化/环化2在温和条件下(7巴ħ 2,110 °C,无溶剂)。最有效的催化剂是Pt和MoO x共负载的TiO 2(Pt-MoO x / TiO 2),具有广泛的底物范围,高周转率(TON)和良好的可重复使用性。
Synthesis of pyrrolidones and quinolines from the known biomass feedstock levulinic acid and amines
作者:Carmen Ortiz-Cervantes、Marcos Flores-Alamo、Juventino J. García
DOI:10.1016/j.tetlet.2016.01.018
日期:2016.2
cost effective synthetic strategy. Here, we describe the synthesis of a variety of N-(alkyl, aryl)-5-methyl-2-pyrrolidones through the reductive amination of levulinic acid using formic acid as the hydrogen source. This system is catalyzed by 3.8 nm ruthenium nanoparticles that were prepared by thermal decomposition of [Ru3(CO)12] in solvent-free conditions. When the reactions were carried out without
Direct Synthesis of Lactams from Keto Acids, Nitriles, and H<sub>2</sub>
by Heterogeneous Pt Catalysts
作者:S. M. A. H. Siddiki、Abeda S. Touchy、Ashvini Bhosale、Takashi Toyao、Yuji Mahara、Junya Ohyama、Atsushi Satsuma、Ken-ichi Shimizu
DOI:10.1002/cctc.201701355
日期:2018.2.21
We report herein the first general catalytic system for the direct synthesis of N‐substituted γ‐ and δ‐lactams by reductive amination/cyclization of keto acids (including levulinic acid) with nitriles and H2 under mild conditions (7 bar H2, 110 °C, solvent free). The most effective catalyst, Pt and MoOx co‐loaded TiO2 (Pt‐MoOx/TiO2), shows a wide substrate scope, high turnover number (TON), and good
我们在此报告的第一一般催化系统用于直接合成的N-取代的γ-和δ-内酰胺通过酮酸(包括乙酰丙酸)与腈和H还原胺化/环化2在温和条件下(7巴ħ 2,110 °C,无溶剂)。最有效的催化剂是Pt和MoO x共负载的TiO 2(Pt-MoO x / TiO 2),具有广泛的底物范围,高周转率(TON)和良好的可重复使用性。