Search results for "Manta"

4-(2-Adamantyl)thiosemicarbazone

1984

Aus der Umsetzung von 4-(2-Adamantyl)thiosemicarbazid (1) mit den Carbonylverbindungen 2a-d gehen die 4-(2-Adamantyl)thiosemicarbazone 3a-d hervor. Die Startkomponente 1 ist aus 2-Aminoadamantan (4) uber das (2-Adamantyl)-isothiocyanat (5) zuganglich. Verbindung 5 und Vertreter des Strukturtyps 3 vermogen antivirale, antimykotische und antipyretische Wirkung auszuuben. Antiviral Agents, XXIV: 4-(2-Adamantyl)thiosemicarbazones Reactions of 4-(2-adamantyl)thiosemicarbazide (1) with the carbonyl compounds 2a-d yield the 4-(2-adamantyl)thiosemicarbazones 3a-d. The starting material 1 is accessible from 2-aminoadamantane (4) via 2-adamantyl isothiocyanate (5). Compound 5 and representatives of t…

Diamondoids: functionalization and subsequent applications of perfectly defined molecular cage hydrocarbons

2014

The term “diamondoid” describes cage hydrocarbon molecules that are superimposable on the diamond lattice. Diamondoids that are formally built by face-fusing of adamantane units, namely diamantane, triamantane, tetramantane, etc., have fascinated chemists since the beginning of the last century. The functionalization of these perfectly defined (C,H)-molecules is described here. Thus, diamondoid halides and diamondoid alcohols are first rank precursors for amino and phosphine-substituted diamondoids that have proved to be highly useful in therapeutic applications and metal catalysis, respectively. The extent of functionalization and polyfunctionalization achieved for adamantane and diamantan…

Synthesis of Precision Poly(1,3-adamantylene alkylene)s via Acyclic Diene Metathesis Polycondensation

2019

[Image: see text] Fully saturated, aliphatic polymers containing adamantane moieties evenly distributed along the polymer backbone are of great interest due to their exceptional thermal stability, yet more synthetic strategies toward these polymers would be desirable. Herein, we report for the first time the synthesis of poly(1,3-adamantylene alkylene)s based on α,ω-dienes containing bulky 1,3-adamantylene defects precisely located on every 11th, 17th, 19th, and 21st chain carbon via acyclic diene metathesis polycondensation. All saturated polymers revealed excellent thermal stabilities (452–456 °C) that were significantly higher compared to those of structurally similar polyolefins with al…

(1-Adamantyl)methyl glycidyl ether: a versatile building block for living polymerization.

2014

(1-Adamantyl)methyl glycidyl ether (AdaGE) is introduced as a versatile monomer for oxyanionic polymerization, enabling controlled incorporation of adamantyl moieties in aliphatic polyethers. Via copolymerization with ethoxyethyl glycidyl ether (EEGE) and subsequent cleavage of the acetal protection groups of EEGE, hydrophilic linear polyglycerols with an adjustable amount of pendant adamantyl moieties are obtained. The adamantyl unit permits control over thermal properties and solubility profile of these polymers (LCST). Additionally, AdaGE is utilized as a termination agent in carbanionic polymerization, affording adamantyl-terminated polymers. Using these structures as macroinitiators fo…

Nanodiamonds: Emergence of Functionalized Diamondoids and Their Unique Applications

2015

Targeting the Mitochondria by Novel Adamantane-Containing 1,4-Dihydropyridine Compounds

2012

Linda Klimaviciusa1, Maria A. S. Fernandes2, Nelda Lencberga1, Marta Pavasare1, Joaquim A. F. Vicente2, Antonio J. M. Moreno2, Maria S. Santos3, Catarina R. Oliveira4, Imanta Bruvere5, Egils Bisenieks5, Brigita Vigante5 and Vija Klusa1 1Department of Pharmacology, Faculty of Medicine, University of Latvia, Riga 2IMAR-CMA, Department of Life Sciences, University of Coimbra, Coimbra 3CNC, Department of Life Sciences, University of Coimbra, Coimbra 4CNC, Faculty of Medicine, University of Coimbra, Coimbra 5Laboratory of Membrane Active and beta-Diketone Compounds, Latvian Institute of Organic Synthesis, Riga 2,3,4Portugal 1,5Latvia

The First Clamped and Strongly Deformed Adamantane

1990

Mantas atzīšana par noziedzīgi iegūtu

2018

Mantisko jautājumu risinājums kriminālprocesā ir viens no krimināltiesisko attiecību taisnīga noregulējuma elementiem. Pie mantiskajiem jautājumiem pieskaitāma arī rīcība ar noziedzīgi iegūtu mantu. 2017. gada 22. jūnija grozījumi Krimināllikumā un Kriminālprocesa likumā ieviesa diezgan būtiskas izmaiņas noziedzīgi iegūtas mantas materiālajā un procesuālajā regulējumā. Bakalaura darbā tiek analizēti gan minētie grozījumi, gan vispārīga rakstura jautājumi saistībā ar noziedzīgi iegūtu mantu. Bakalaura darba mērķis ir izpētīt noziedzīgi iegūtas mantas jēdzienu, kā arī procedūru, kādā manta tiek atzīta par noziedzīgi iegūtu gan pirmstiesas procesā, gan ar galīgo nolēmumu kriminālprocesā. Darba…

N,N′-Bis(pyridin-2-yl)octanediamide

2016

The complete molecule of the title compound, C18H22N4O2, is generated by crystallographic inversion symmetry. In the crystal, N—H...N hydrogen bonds connect the molecules into [010] chains, which featureR22(8) loops. The packing is consolidated by C—H...O interactions.

N-(Pyrazin-2-yl)adamantane-1-carboxamide

2016

Molecules of the title compound, C15H19N3O, are composed of an adamantine unit and a pyrazine ring connected to each other through an amide bond. The H—N—C=O moiety is close to planar [C—N—C—O and C—N—C—C torsion angles of 4.7 (2) and −173.8 (1)°, respectively]. The N3—C5 bond has partial double-bond character [1.370 (1) Å]. The geometries of the pyrazine ring and the adamantane substituent are normal and in good agreement with closely related structures. In the crystal, molecules are connected by N—H...O hydrogen bonds, forming zigzag chains in the [001] direction and are arranged in a herringbone fashion.