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Remarkable Effect of Pore Size on the Catalytic Activity of Mesoporous Silica...
The catalytic activity of mesoporous silica (MCM-41) for the acetalization of cyclohexanone shows a volcano-shaped dependence on the pore diameter. The diameter of the... -
Construction of Novel Polycyclic Ring Systems by Transition-Metal-Catalyzed C...
Construction of Novel Polycyclic Ring Systems by Transition-Metal-Catalyzed Cycloisomerization of Ene−Ene−Ynes. Interception of a Carbenoid Intermediate in Skeletal... -
Development of Chiral Nucleophilic Pyridine Catalysts: Applications in Asymm...
TADMAP (1a), a new chiral DMAP catalyst, has been designed to place a C(3)-benzylic trityl group over one face of the pyridine ring, while a C(3)-benzylic acetoxy group creates... -
Highly selective cobalt-catalyzed hydrovinylation of styrene
: The hydrovinylation reaction is a codimerization of a 1,3-diene or vinyl arene and ethene with great potential for fine chemicals and pharmaceuticals. For the first time,... -
Modulation of T2 Relaxation Time by Light-Induced, Reversible Aggregation of ...
A reversible T2 contrast agent consisting of cross-linked anionic dextran coated iron oxide nanoparticles covalently coupled to a light-sensitive spiropyran (SP)/merocyanine... -
Coibamide A, a Potent Antiproliferative Cyclic Depsipeptide from the Panamani...
Coibamide A (1) is a new, potent antiproliferative depsipeptide which was isolated from a marine Leptolyngbya cyanobacterium collected from the Coiba National Park, Panama. The... -
Local Current Mapping and Patterning of Reduced Graphene Oxide
Conductive atomic force microscopy (C-AFM) has been used to correlate the detailed structural and electrical characteristics of graphene derived from graphene oxide. Uniform... -
Au@ZIF-8: CO Oxidation over Gold Nanoparticles Deposited to Metal−Organic Fra...
Gold nanoparticles (NPs) were deposited to a zeolite-type metal−organic framework (MOF) by a simple solid grinding method. A catalyst, Au@ZIF-8, represents the first example of... -
Screening of π-Basic Naphthalene and Anthracene Amplifiers for π-Acidic Synth...
Synthetic ion channels and pores attract current attention as multicomponent sensors in complex matrixes. This application requires the availability of reactive signal... -
Low temperature CO oxidation over supported ultrathin MgO films
Density functional theory is used to investigate CO oxidation over an ultrathin MgO film supported on Ag(100). O-2 is found to be activated on MgO/Ag(100) whereas CO is only... -
A Stable Four-Membered N-Heterocyclic Carbene
The synthesis of the first four-membered N-heterocyclic carbene is described. Depending on the substituents on the nitrogen atoms, it is possible to characterize at room... -
Moore-Type Cyclization Leading to Arene Chromium Tricarbonyl 1,4-Diradical In...
Moore-Type Cyclization Leading to Arene Chromium Tricarbonyl 1,4-Diradical Intermediates and the Isolation of Indolines -
Supermolecular Building Blocks (SBBs) and Crystal Design: 12-Connected Open ...
The cubohemioctahedral supermolecular building blocks, SBBs, of formula [M6(bdc)12]12- (M = Ni, Co) (as illustrated) have the requisite symmetry to be cross-linked by rigid... -
Total Synthesis of (−)-Scabronine G, an Inducer of Neurotrophic Factor Produc...
The total synthesis of (−)-scabronine G has been achieved in a concise manner from the (−)-Wieland−Miescher ketone. Scabronine G and its more potent methyl ester (also prepared)... -
Synthesis of Tetrasubstituted Ethylenes on Solid Support via Resin Capture
Synthesis of Tetrasubstituted Ethylenes on Solid Support via Resin Capture -
Poly-Oxygenated Tricyclobutabenzenes via Repeated [2 + 2] Cycloaddition of Be...
Described herein is a synthesis of highly functionalized tricyclobutabenzenes, a class of molecules of structural and theoretical interest. The preparation is based on the... -
Total Synthesis of the Anticancer Natural Product OSW-1
The highly potent anticancer natural saponin OSW-1 has been successfully synthesized from commercially available 5-androsten-3β-ol-17-one 79 in 10 operations with 28% overall... -
Formation of Indene Derivatives from Bis(cyclopentadienyl)titanacyclopentadie...
A novel type of migration of an alkyl group in the formation of indene derivatives from titanacyclopentadienes was found. When titanacyclopentadienes with four alkyl groups were... -
Bifunctional Asymmetric Catalysis: Amplification of Brønsted Basicity Can Ort...
The reactivity of a series of symmetrical chiral Bronsted acids (polar ionic hydrogen-bond donors) follows the counterintuitive trend wherein the more Bronsted basic member is a... -
Catalase−Peroxidase Activity of Iron(III)−TAML Activators of Hydrogen Peroxide
Exceptionally high peroxidase-like and catalase-like activities of iron(III)−TAML activators of H2O2 (1: Tetra-Amidato-Macrocyclic-Ligand FeIII complexes...
