Aggregation behaviour of peptide–polymer conjugates containing linear peptide backbones and multiple polymer side chains prepared by nitroxide-mediated radical polymerization
stereoselective synthesis of a variety of β-nitro-α-amino carboxylic acidsvia aza-Henry (nitro-Mannich) reaction of aldimines is disclosed, yielding either anti- or a rarely reported syn-configuration. The reaction operates directly on free glyoxylic acid and generates imine species in situ. Crystallization-controlled diastereoselectivity enables isolation of the target compounds in high enantio- and diastereomeric
Synthesis of 1-azaspiro[4.4]nonan-1-oxyls via intramolecular 1,3-dipolar cycloaddition
作者:Yulia V Khoroshunova、Denis A Morozov、Andrey I Taratayko、Polina D Gladkikh、Yuri I Glazachev、Igor A Kirilyuk
DOI:10.3762/bjoc.15.200
日期:——
Sterically shielded nitroxides of the pyrrolidine series have shown the highest resistance to reduction. Here we report the synthesis of new pyrrolidine nitroxides from 5,5-dialkyl-1-pyrroline N-oxides via the introduction of a pent-4-enyl group to the nitrone carbon followed by an intramolecular 1,3-dipolar cycloaddition reaction and isoxazolidine ring opening. The kinetics of reduction of the new
[EN] NITRATED HYDROCARBONS, DERIVATIVES, AND PROCESSES FOR THEIR MANUFACTURE<br/>[FR] HYDROCARBURES NITRÉS, DÉRIVÉS ET LEURS PROCÉDÉS DE PRODUCTION
申请人:ANGUS CHEMICAL
公开号:WO2009129097A1
公开(公告)日:2009-10-22
Provided is a process for the formation of nitrated compounds by the nitration of hydrocarbon compounds with dilute nitric acid. Also provided are processes for preparing industrially useful downstream derivatives of the nitrated compounds, as well as novel nitrated compounds and derivatives, and methods of using the derivatives in various applications.
Formation of organic nitro-compounds in flowing H2O2+ NO2+ N2+ organic vapour systems. Part 3.—Effects of O2 addition on H2O2+ NO2+ N2+ alkane systems
作者:Donald L. Baulch、Ian M. Campbell、Jonathan M. Chappel
DOI:10.1039/f19848000617
日期:——
The effects of oxygen on the product distribution from the surface-initiated reactions in flowing mixtures of H2O2, NO2, N2 and RH, where RH = ethane, propane, n-butane and n-pentane, at 298 K have been studied. In the absence of O2, the principal products are the corresponding nitroalkane, alkyl nitrite and alkyl nitrate. In the presence of sufficiently large concentrations of O2, the predominant
H 2 O 2,NO 2,N 2和RH的流动混合物(其中RH =乙烷,丙烷,正丁烷和正戊烷)在298 K时,氧气对表面引发的反应中产物的分布有影响被研究了。在没有O 2的情况下,主要产物是相应的硝基烷,亚硝酸烷基酯和硝酸烷基酯。在足够大浓度的O 2的存在下,主要产物是硝酸烷基酯,在某些情况下,唯一重要的其他产物是相应的羰基化合物。