Novel functionalization of 1-methyl-2-quinolone; dimerization and denitration of trinitroquinolone
摘要:
New methods for functionalization of 1-methyl-2-quinolone (MeQone) skeleton are provided. The reaction of 1-methyl-3,6,8-trinitro-2-quinolone (TNQ) with amines affords quinolone dimer 1 and 6,8-dinitroquinotone (6,8-DNQ). Dimerization predominantly proceeds at room temperature, and denitration takes place under heated and diluted conditions. We also provide a plausible mechanism for these reactions on the basis of structure-reactivity relationship of amines. (C) 2002 Elsevier Science Ltd. All rights reserved.
SILANE COUPLING COMPOUNDS AND MEDICAL AND/OR DENTAL CURABLE COMPOSITIONS COMPRISING THE SAME
申请人:KABUSHIKI KAISHA SHOFU
公开号:US20190300552A1
公开(公告)日:2019-10-03
The present invention relate to a novel silane coupling agent and a medical and/or dental curable composition comprising the same. It is an object of the present invention to provide a novel silane coupling agent that imparts high affinity to a radical polymerizable monomer, thereby imparting high mechanical strength, flexibility and durability when used for a medical and/or dental curable composition, and an inorganic filler surface-treated with the novel silane coupling agent and a novel medical and/or dental curable composition. A silane coupling agent including repeating units such as a urethane bond and polyethylene glycol (ether bond) at a specific position is used.
[EN] NEW CATIONIC DYES, KITS AND COMPOSITIONS THEREOF, AND PROCESS FOR DYEING KERATIN FIBERS<br/>[FR] NOUVEAUX COLORANTS CATIONIQUES, KITS ET COMPOSITIONS LES CONTENANT, ET PROCÉDÉ DE TEINTURE DE FIBRES KÉRATINIQUES
申请人:ALFA PARF GROUP S P A
公开号:WO2014202150A1
公开(公告)日:2014-12-24
The present invention relates to new cationic dyes of general formula (I) and (II): The invention also relates to kits and compositions for dyeing keratin fibers, which contain at least one of these dyes as well as to a process for dyeing keratin fibers using at least one of these dyes.
Molecularclip 1 remains monomeric in water and engages in host–guest recognition processes with suitable guests. We report the Ka values for 32 1⋅guest complexes measured by 1H NMR, UV/Vis, and fluorescence titrations. The cavity of 1 is shaped by aromatic surfaces of negative electrostatic potential and therefore displays high affinity and selectivity for planar and cationic aromatic guests that
分子夹1在水中仍然是单体,并与合适的客人一起参与宿主-客体识别过程。我们报告了通过1 H NMR,UV / Vis和荧光滴定法测得的32个1⋅客体配合物的K a值。1的腔体由负电势的芳族表面形成,因此对平面和阳离子芳族客体显示出高亲和力和选择性,这使其与CB [ n ]受体相区别,后者比脂族客体更喜欢脂肪族。静电作用在识别过程中起着主要作用,在此过程中,铵离子和C = O的1个基团之间可能发生离子-偶极相互作用。情况下,SO之间3 -基团的1和在来宾悬垂阳离子基团,和空腔内1由阳离子-π相互作用。宿主1对具有大的平面芳族表面(例如萘二酰亚胺NDI +和per二酰亚胺PDI +)和衍生自a啶的阳离子染料(例如亚甲基蓝和天蓝色A)表现出较高的亲和力。通过比较类似的中性和阳离子客体(例如,亚甲基紫与亚甲基蓝;喹啉与N-甲基喹啉鎓; a啶与N-甲基ac啶;中性红与中性红H +)可以确定阳离子-π相
[EN] QUINOLINE DERIVED SMALL MOLECULE INHIBITORS OF NICOTINAMIDE N-METHYLTRANSFERASE (NNMT) AND USES THEREOF<br/>[FR] INHIBITEURS À PETITES MOLÉCULES DÉRIVÉS DE QUINOLÉINE DE LA NICOTINAMIDE N-MÉTHYLTRANSFÉRASE (NNMT) ET LEURS UTILISATIONS
申请人:UNIV TEXAS
公开号:WO2018183668A1
公开(公告)日:2018-10-04
The present invention relates to quinoline derived small molecule inhibitors of nicotinamide N-methyltransferase (NNMT), the preparation thereof and uses thereof. Formula (I).
本发明涉及喹啉衍生的小分子抑制剂对烟酰胺N-甲基转移酶(NNMT)的制备及其用途。公式(I)。
N-Dealkylation of an <i>N</i>-Cyclopropylamine by Horseradish Peroxidase. Fate of the Cyclopropyl Group
作者:Christopher L. Shaffer、Martha D. Morton、Robert P. Hanzlik
DOI:10.1021/ja0111479
日期:2001.9.1
which catalyze their oxidative N-dealkylation. A key intermediate in both processes is postulated to be a highly reactive aminium cation radical formed by single electron transfer (SET) oxidation of the nitrogen center, but direct evidence for this has remained elusive. To address this deficiency and identify the fate of the cyclopropylgroup lost upon N-dealkylation, we have investigated the oxidation