Results 21 to 30 of about 14,410,077 (307)

Sequentially Palladium-Catalyzed Processes in One-Pot Syntheses of Heterocycles

open access: yesApplied Sciences, 2015
Sequentially Pd-catalyzed processes are excellent entries to heterocycle synthesis. The broad mechanistic variety combined with often very mild reaction conditions allow the concatenation of elementary organic and organometallic steps to novel sequences ...
Timo Lessing, Thomas J. J. Müller
doaj   +1 more source

Estimating risks of identification disclosure in partially synthetic data

open access: yes, 2008
To limit disclosures, statistical agencies and other data disseminators can release partially synthetic, public use microdata sets. These comprise the units originally surveyed, but some collected values, for example sensitive values at high risk of ...
Reiter, Jerome P.   +3 more
core   +2 more sources

Synthesis of the 1,5‐Benzothiazepane Scaffold – Established Methods and New Developments

open access: yesChemistryOpen, 2023
The 1,5‐benzothiazepane structure is an important heterocyclic moiety present in a variety of commercial drugs and pharmaceuticals. This privileged scaffold exhibits a diversity of biological activities, including antimicrobial, antibacterial, anti ...
Ulrike Ronse   +3 more
doaj   +1 more source

Recent Advances in the Synthesis of Cyclic Sulfoximines via C–H Bond Activation

open access: yesMolecules, 2023
Sulfoximines, a ubiquitous class of structural motifs, are widely present in bioactive molecules and functional materials that have received considerable attention from modern organic chemistry, pharmaceutical industries, and materials science ...
Bingren Wang, Xiayu Liang, Qingle Zeng
doaj   +1 more source

Recent Advances in Asymmetric Synthesis of Pyrrolidine-Based Organocatalysts and Their Application: A 15-Year Update

open access: yesMolecules, 2023
In 1971, chemists from Hoffmann-La Roche and Schering AG independently discovered a new asymmetric intramolecular aldol reaction catalyzed by the natural amino acid proline, a transformation now known as the Hajos–Parrish–Eder–Sauer–Wiechert reaction ...
Arianna Quintavalla   +2 more
doaj   +1 more source

Modeling structure-function relationships in synthetic DNA sequences using attribute grammars [PDF]

open access: yes, 2009
Recognizing that certain biological functions can be associated with specific DNA sequences has led various fields of biology to adopt the notion of the genetic part.
Cai, Yizhi; id_orcid   +14 more
core   +1 more source

Corrosion Protective Coating Based on Chemically Cross-Linked Particles of Few-Layer Graphene

open access: yesNanomaterials
Coatings based on graphene nanostructures represent one of the most promising solutions for protecting metals from corrosion. However, their application remains unprofitable due to the high production costs, which are caused by the imperfections in ...
Aleksei Vozniakovskii   +5 more
doaj   +1 more source

High resolution digital holographic synthetic aperture applied to deformation measurement and extended depth of field method [PDF]

open access: yes, 2010
This paper discusses the potential of the synthetic-aperture method in digital holography to increase the resolution, to perform high accuracy deformation measurement, and to obtain a three-dimensional topology map.
Claus, Daniel
core   +1 more source

Magnetically Hollow Pt Nanocages with Ultrathin Walls as a Highly Integrated Nanoreactor for Catalytic Transfer Hydrogenation Reaction

open access: yesAdvanced Science, 2019
Fabricating efficient and stable nanocatalysts for chemoselective hydrogenation of nitroaromatics is highly desirable because the amines hold tremendous promise for the synthesis of nitrogen containing chemicals. Here, a highly reactive and stable porous
Yongjian Ai   +8 more
doaj   +1 more source

On the Assumptions of Synthetic Control Methods

open access: yes, 2021
Synthetic control (SC) methods have been widely applied to estimate the causal effect of large-scale interventions, e.g., the state-wide effect of a change in policy. The idea of synthetic controls is to approximate one unit's counterfactual outcomes using a weighted combination of some other units' observed outcomes.
Claudia Shi   +3 more
openaire   +3 more sources

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