生物质衍生的叶绿酸(LA)的还原胺化反应,用于合成N取代的吡咯烷酮是生物质增值的极具吸引力的途径之一。负载到固体表面中的均相金属前体在催化领域是重要的背景,因为这些类型的催化剂提供了非均相性质并满足了可回收性的需求。在此,我们已经报道了将钌离子负载在固定于氧化石墨烯的离子液体上的催化剂的合成方法([电子邮件保护])及其在还原胺化反应中的应用。使用不同的分析技术(例如FT-IR,XRD,XPS,TGA,FEG-SEM,TEM和EXAFS分析)对合成的催化剂进行表征。发现制备的[受电子邮件保护]对LA的还原胺化非常有效,在这些优化条件下,各种N取代的吡咯烷酮衍生物的合成产率极高(78-93%)。[受电子邮件保护]催化剂与其他催化剂相比,在LA的还原胺化反应中表现出出色的催化性能,具有良好的周转频率(TOF = 62 h -1)。[电子邮件保护的]催化剂在第4个循环后循环进行了6次反应,活性略有
Production of 5-methyl-1-hydrocarbyl-2-pyrrolidone by reductive amination of levulinic acid
申请人:——
公开号:US20040192933A1
公开(公告)日:2004-09-30
This invention relates to a process for producing 5-methyl-1-R-2-pyrrolidone or 5-methyl-2-pyrrolidone, wherein R is a hydrocarbyl or substituted hydrocarbyl, by reductive amination of levulinic acid utilizing a metal catalyst, which may be optionally supported.
Process for making 5-methyl-N-alkyl-2-pyrrolidone from alkyl amine(s) and levulinic acid
申请人:Manzer Ernest Leo
公开号:US20060247444A1
公开(公告)日:2006-11-02
This invention relates to a process for producing a reaction product comprising 5-methyl-N-alkyl-2-pyrrolidone by (a) reacting levulinic acid with alkyl amine(s) and (b) hydrogenating the products of step (a) in the presence of a metal catalyst, which is optionally supported.
Reductive amination of levulinic acid to N-substituted pyrrolidones over RuCl3 metal ion anchored in ionic liquid immobilized on graphene oxide
作者:Amol B. Raut、Vaishali S. Shende、Takehiko Sasaki、Bhalchandra M. Bhanage
DOI:10.1016/j.jcat.2020.01.020
日期:2020.3
Reductive amination of biomass derived Levulinicacid (LA) for the synthesis of N-substituted pyrrolidones is one of the highly attractive routes for biomass valorization. The supported homogeneous metal precursor into the solid surface is an important context in the field of catalysis because these types of catalysts provide the heterogeneous nature and meet the needs of recyclability. Herein, we
生物质衍生的叶绿酸(LA)的还原胺化反应,用于合成N取代的吡咯烷酮是生物质增值的极具吸引力的途径之一。负载到固体表面中的均相金属前体在催化领域是重要的背景,因为这些类型的催化剂提供了非均相性质并满足了可回收性的需求。在此,我们已经报道了将钌离子负载在固定于氧化石墨烯的离子液体上的催化剂的合成方法([电子邮件保护])及其在还原胺化反应中的应用。使用不同的分析技术(例如FT-IR,XRD,XPS,TGA,FEG-SEM,TEM和EXAFS分析)对合成的催化剂进行表征。发现制备的[受电子邮件保护]对LA的还原胺化非常有效,在这些优化条件下,各种N取代的吡咯烷酮衍生物的合成产率极高(78-93%)。[受电子邮件保护]催化剂与其他催化剂相比,在LA的还原胺化反应中表现出出色的催化性能,具有良好的周转频率(TOF = 62 h -1)。[电子邮件保护的]催化剂在第4个循环后循环进行了6次反应,活性略有
Process for making 5-methyl -N-alkyl-2-pyrrolidone from alkyl amines and alkyl levulinate esters
申请人:Manzer Ernest Leo
公开号:US20060247443A1
公开(公告)日:2006-11-02
This invention relates to a process for producing a reaction product comprising 5-methyl-N-alkyl-2-pyrrolidone by (a) reacting alkyl levulinate esters with alkyl amines and (b) hydrogenating the products of step (a) in the presence of a metal catalyst, which is optionally supported.
Catalytic reductive amination of biomass-derived levulinic acid and its esters to pyrrolidones, having numerous applications in the pharmaceutical and agrochemical fields, is an attractive approach. A robust Pt-impregnated monoclinic ZrO2 (Pt/M-ZrO2) catalyst is developed for the reductive amination of methyl levulinate (MLevu) with octyl amine (OA) in the presence of H2, obtaining a quantitative yield