Results 31 to 40 of about 1,188,640 (287)

Synthesis of dl-aleprylic acid

open access: yesJournal of Lipid Research, 1969
dl-Aleprylic acid [7-(cyclopent-2′-en-1′-yl)-heptanoic acid], a natural constituent of chaulmoogra oil with reputed antileprosy properties, has been synthesized.
Akira Tanaka
doaj   +1 more source

New efficient ligand for sub-mol % copper-catalyzed C–N cross-coupling reactions running under air

open access: yesBeilstein Journal of Organic Chemistry, 2012
A new efficient ligand, N,N’’-dimethyldiethylene triamine (DMDETA), has been synthesized and evaluated for sub-mol % copper-catalyzed C–N cross-coupling reactions. The efficiency of the ligand was determined by kinetic methods.
Per-Fredrik Larsson   +2 more
doaj   +1 more source

Load-Isolation Wireless Power Transfer With K-Inverter for Multiple-Receiver Applications

open access: yesIEEE Access, 2018
Disturbances among the receivers caused by irrelevant circuit topology and inductive cross couplings among the receiving coils are particularly problematic aspects of multi-receiver wireless power transfer (WPT) systems.
Jiwei Kuang   +4 more
doaj   +1 more source

A New Design Methodology For Enhancing The Transient Loading Of Low Drop-out Regulators (LDRs) [PDF]

open access: yesInternational Journal of Electronics and Telecommunications, 2019
A new simple design methodology which makes LDR output nearly insensitive to jumps of the load current for long times is proposed. This methodology is tested for more than 104 seconds.
Ahmed Abdel_Monem   +2 more
doaj   +1 more source

Synthesis of chiral germanium center enabled by poly-deborylative alkylation and desymmetrization

open access: yesNature Communications
Chiral germanium centers are historically undervalued due to their extremely limited synthetic accessibility. Although germanium shares similar chemical properties with silicon, synthesizing chiral germanium centers proves significantly more challenging.
Ke Wang, Xin-Yuan Liu, Zhe Dong
doaj   +1 more source

One-pot three-component synthesis and photophysical characteristics of novel triene merocyanines

open access: yesBeilstein Journal of Organic Chemistry, 2014
Novel triene merocyanines, i.e. 1-styryleth-2-enylidene and 4-(1,3,3-trimethylindolin-2-ylidene)but-2-en-1-ylideneindolones are obtained in good to excellent yields in a consecutive three-component insertion Sonogashira coupling–addition sequence.
Christian Muschelknautz   +3 more
doaj   +1 more source

Synthesis and Characterization of New Organic Dyes Containing the Indigo Core

open access: yesMolecules, 2020
A new series of symmetrical organic dyes containing an indigo central core decorated with different electron donor groups have been prepared, starting from Tyrian Purple and using the Pd-catalyzed Stille-Migita coupling process.
Daniele Franchi   +6 more
doaj   +1 more source

Coupling Extraction From Off-Shell Cross-sections

open access: yes, 2014
In this note, we present a novel method of extracting the couplings of a new heavy particle to the Standard Model states. Contrary to the usual discovery process which involves studying the on-shell production, we look at regions away from resonance to ...
Coleppa, Baradhwaj   +2 more
core   +2 more sources

Dietary Protein Intake and Peritoneal Protein Losses in Peritoneal Dialysis Patients

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Peritoneal dialysis (PD) patients lose protein in their waste dialysate, potentially increasing their risk for malnutrition. We wished to determine whether there was any association between losses and dietary protein intake (DPI). Methods DPI was assessed from 24‐h dietary recall using Nutrics software.
Haalah Shaaker, Andrew Davenport
wiley   +1 more source

Stabilized Arylzinc Iodides in Negishi Acylative Cross-Coupling: A Modular Synthesis of Chalcones

open access: yesOrganics, 2022
Stabilized arylzinc iodides, synthesized by direct insertion of zinc into the corresponding halides, were used as nucleophiles into an acylative Negishi coupling reaction to synthesize chalcones.
Michele Pierigé   +3 more
doaj   +1 more source

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