Results 51 to 60 of about 41,404 (206)

Mono- Versus Bicyclic Carbene Metal Amide Photoemitters: Which Design Leads to Best Performance?

open access: yes, 2020
New luminescent “carbene-metal-amide” (CMA) Cu, Ag and Au complexes based on monocyclic (C6) or bicyclic six-ring (BIC6) cyclic (alkyl)(amino)carbene ligands illustrates the effects of LUMO energy stabilization, conformational flexibility and excited ...
Vasily, Sivchik   +4 more
core   +1 more source

Selectfluor and alcohol-mediated synthesis of bicyclic oxyfluorination compounds by Wagner–Meerwein rearrangement

open access: yesBeilstein Journal of Organic Chemistry
Herein, we report the first environmentally friendly systematic fluoroalkoxylation reactions in bicyclic systems. New oxyfluorination products were obtained with excellent yields (up to 98%) via Wagner–Meerwein rearrangement using benzonorbornadiene and ...
Ziya Dağalan   +4 more
doaj   +1 more source

Chemoenzymatic tandem cyclization for the facile synthesis of bicyclic peptides

open access: yesCommunications Chemistry
Bicyclic peptides exhibit improved metabolic stabilities and target specificities when compared to their linear or mono-cyclic counterparts; however, efficient and straightforward synthesis remains challenging due to their intricate architectures.
Masakazu Kobayashi   +3 more
doaj   +1 more source

Chemical Composition of Leaf and Seed Oils of Dryobalanops aromatica Gaertn. (Dipterocarpaceae)

open access: yesASEAN Journal on Science and Technology for Development, 2012
The essential oils of the leaves and seed of Dryobalanops aromatica Gaertn. obtained by hydrodistillation resulted in 0.07% and 1.89% yield, respectively. These oils were then examined by GC-MS.
A.S Kamariyah   +3 more
doaj   +1 more source

On locally compact shift-continuous topologies on the α-bicyclic monoid

open access: yesTopological Algebra and its Applications, 2018
A topology τ on a monoid S is called shift-continuous if for every a, b ∈ S the two-sided shift S → S, x ↦ axb, is continuous. For every ordinal α ≤ ω, we describe all shift-continuous locally compact Hausdorff topologies on the α-bicyclic monoid Bα ...
Bardyla Serhii
doaj   +1 more source

Quantum Bicyclic Hyperbolic Codes

open access: yes, 2019
Bicyclic codes are a generalization of the one dimensional (1D) cyclic codes to two dimensions (2D). Similar to the 1D case, in some cases, 2D cyclic codes can also be constructed to guarantee a specified minimum distance. Many aspects of these codes are
Rayudu, Sankara Sai Chaithanya   +1 more
core   +1 more source

Further Results on the Nullity of Signed Graphs

open access: yesJournal of Applied Mathematics, 2014
The nullity of a graph is the multiplicity of the eigenvalue zero in its spectrum. A signed graph is a graph with a sign attached to each of its edges. In this paper, we apply the coefficient theorem on the characteristic polynomial of a signed graph and
Yu Liu, Lihua You
doaj   +1 more source

Bicyclic Carbopalladation Reaction with Two gem-Reaction Centers. Efficient Construction of Fused Bicyclic Skeletons

open access: yes, 2016
Bicyclic Carbopalladation Reaction with Two gem-Reaction Centers.
Shengming Ma (1312428), Bin Xu (10691)
core   +1 more source

Light-induced rearrangement from macrocyclic to bicyclic lactam: A case study of N-chlorinated laurolactam

open access: yesActa Pharmaceutica
Converting macrocycle lactams into bicyclic lactams is proposed as an additional way to further increase the metabolic stability of peptide-based drugs. Unfortunately, the synthesis of bicyclic lactams has to start almost from scratch.
Zubčić Gabrijel   +6 more
doaj   +1 more source

MOLECULAR REARRANGEMENTS OF HIGHLY FUNCTIONALIZED TERPENES. AN UNIQUE REACTIVITY OF BICYCLIC FRAMEWORK AND POLIENIC CHAIN INHIBITION UNDER SUPERACIDIC TREATMENT [PDF]

open access: yesChemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2013
Synthesis of polyfunctional triterpene derivative [8(27),13E,17E,21E]-15-phenylsulfonyl-16-oxobicyclofarnesylfarnesol benzyl ether (8) from commercially available monoterpene geraniol and diterpene manool has been accomplished in 73% yield and its ...
Marina Grinco   +5 more
doaj  

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