以( R )-(+)-α-甲基苄胺为起始原料,转化为两种胺,得到两种新的β-氨基醇化合物。在作为催化剂的水的存在下,这些化合物中的每一种都与顺式和反式-柠檬烯氧化物的1:1混合物过量反应。获得的产物表明,获得了衍生自反式-柠檬烯氧化物的β-氨基醇,并且获得了来自反应混合物的未反应的顺式-柠檬烯氧化物以及胺。而在水的存在下,将合成的相同伯胺的氨基甲酸酯添加到顺式和反式柠檬烯氧化物的 1:1 混合物中会导致水解产物和未反应的回收反式柠檬烯氧化物。
Transientreceptorpotentialmelastatin8 (TRPM8), a temperature-sensitive ion channel responsible for detecting cold, is an attractive molecular target for the treatment of pain and other disorders. We have previously discovered a selectiveTRPM8antagonist, KPR-2579, which inhibited bladder afferent hyperactivity induced by acetic acid instillation into the bladder. However, additional studies have
Practical Synthesis of Amides via Copper/ABNO-Catalyzed Aerobic Oxidative Coupling of Alcohols and Amines
作者:Susan L. Zultanski、Jingyi Zhao、Shannon S. Stahl
DOI:10.1021/jacs.6b03931
日期:2016.5.25
A modular Cu/ABNO catalystsystem has been identified that enables efficient aerobic oxidative coupling of alcohols and amines to amides. All four permutations of benzylic/aliphatic alcohols and primary/secondary amines are viable in this reaction, enabling broad access to secondary and tertiary amides. The reactions exhibit excellent functional group compatibility and are complete within 30 min-3
Metal-Organic Frameworks with Organogold(III) Complexes for Photocatalytic Amine Oxidation with Enhanced Efficiency and Selectivity
作者:Qing Han、Yue-Lin Wang、Min Sun、Chun-Yi Sun、Shan-Shan Zhu、Xin-Long Wang、Zhong-Min Su
DOI:10.1002/chem.201803161
日期:2018.10.9
selective, and recyclable catalysts for light‐induced aerobic C−N bond formation. When used as a heterogeneous catalyst for oxidizing secondary amines to the corresponding imines, AuIII@ZJU‐28 achieved high TONs of 876–1548, which are about 2.8–3.5 times higher than that of the homogenous AuIII complex. In addition, different selectivities in oxidizing mixed substrates is realized by means of different
具有高发射三重态激发态的发光有机金(III)络合物Au III被封装在具有不同孔径和结构(MOF1和ZJU-28)的两个金属有机框架(MOF)中。与溶液中的Au III络合物相比,所得的复合物Au III @ MOF1和Au III @ ZJU -28表现出增强的发射强度,寿命和量子产率。在辐照下,Au III @MOFs是有效,选择性和可回收的催化剂,用于光诱导的需氧CN键形成。当用作将仲胺氧化为相应亚胺的非均相催化剂时,Au III@ ZJU-28获得了876-1548的高TON,比同质Au III复合物的高2.8-3.5倍。另外,借助于不同的主体MOF,在氧化混合基质中实现了不同的选择性,因此将Au III络合物封装在适当的MOF中可以得到所需的产物。通过使用复合催化剂,还可以克服均相催化剂在循环使用中的固有缺点,并且在十个循环后仍观察到Au III @ ZJU-28催化剂的高转化率。
A New Protocol for a One-pot Synthesis of α-Amino Phosphonates by Reaction of Imines Prepared In Situ with Trialkylphosphites
作者:Mohammad R. Saidi、Najmedin Azizi
DOI:10.1055/s-2002-32957
日期:——
Imines prepared in situ by reaction of aldehydes and ketones with primary amines in ethereal solution of LiClO4 react readily at ambient temperature with trialkylphosphite to give high yields of α-amino phosphonates.
[2+2] Carbonylative cycloaddition catalyzed by palladium: stereoselective synthesis of β-lactams
作者:Luigino Troisi、Luisella De Vitis、Catia Granito、Tullio Pilati、Emanuela Pindinelli
DOI:10.1016/j.tet.2004.05.079
日期:2004.8
[2+2] Carbonylativecycloaddition of chiral imines to various allyl halides, under CO pressure, in the presence of Et3N, a catalytic amount of Pd(OAc)2 and PPh3 as ligand, are carried out. Separable diastereomeric mixtures of chiral alkenyl-β-lactams are isolated with good yields and high trans diastereoselections. Absolute configurations are assigned by X-ray measurements and 1H NMR spectroscopy.
[2 + 2]在Et 3 N存在下,在CO压力下,在CO压力下,将手性亚胺羰基化成环烷基加成各种烯丙基卤,催化量的Pd(OAc)2和PPh 3作为配体。手性烯基-β-内酰胺的可分离的非对映异构体混合物具有良好的收率和较高的反式非对映体选择性。通过X射线测量和1 H NMR光谱确定绝对构型。