Results 111 to 120 of about 18,824 (297)

Cross‐Carboxylation of Methanol and Other Alcohols With CO2 Into Asymmetric Alkyl Methyl Carbonates Over a CeO2 Catalyst

open access: yesChemistry – A European Journal, EarlyView.
One‐pot synthesis of asymmetric organic carbonates from CO2, methanol, and other alcohols was demonstrated in the presence of CeO2 catalyst and 2‐cyanopyridine dehydrant. This reaction proceeded through two reaction pathways—direct route via cross‐carboxylation and indirect route via production of DMC and subsequent transesterification.
Yuan Li   +4 more
wiley   +1 more source

Studies on Carbamates. XI. The Carbamate of Ethylenediamine. [PDF]

open access: yesActa Chemica Scandinavica, 1955
Arne Jensen   +3 more
openaire   +1 more source

Dynamic Control of Nucleic Acids Self‐Assembly and Expression Using Photoswitches

open access: yesChemistry – A European Journal, EarlyView.
We review here the recent progress made in the design of molecular photoswitches, and highlight their implementation for the dynamic control over nucleic acids self‐assembly and expression. ABSTRACT Synthetic nucleic acids have become readily available and now constitute versatile building blocks in materials science—where they can be used to engineer ...
Noemí Nogal   +4 more
wiley   +1 more source

Solution-Phase Parallel Synthesis of Carbamates Using Polymer-Bound N-Hydroxysuccinimide

open access: yes, 2016
A convenient method for the synthesis of carbamates using polymer-supported N-hydroxysuccinimide is described. Various carbamates were synthesized in highly pure form without the need for chromatographic purification.
Yoshiyasu Baba (1648072)   +4 more
core   +2 more sources

Suzuki−Miyaura Coupling of Aryl Carbamates, Carbonates, and Sulfamates

open access: yes, 2016
Suzuki−Miyaura Coupling of Aryl Carbamates, Carbonates, and ...
Krastina V. Petrova (2331082)   +3 more
core   +1 more source

Synthesis and Reactivity of 3‐Aminosydnones in Cycloaddition Reactions With Alkynes

open access: yesChemistry – A European Journal, EarlyView.
The synthesis, functionalization, and reactivity as dipoles of 3‐aminosydnones have been investigated. These neglected compounds undergo smooth cycloaddition reactions with strained alkynes, leading to 1‐aminopyrazoles. ABSTRACT We present in this article the synthesis, functionalization, and properties of 3‐aminosydnones, a forgotten class of ...
Apolline Dominic   +7 more
wiley   +1 more source

Synthesis and Biological Evaluation of Well‐Defined M6P(n)‐Modified Glycopeptides for Targeted Protein Degradation

open access: yesChemistry – A European Journal, EarlyView.
A synthetic methodology has been developed to prepare multifunctional M6P and M6Pn ligands of different valency. The glycopeptides were conjugated to cetuximab and then examined to mediate cellular uptake of fluorescently labeled EGFRvIII. Only cetuximab modified by glycopeptides having 3 or 6 M6P or M6Pn residues demonstrated greater uptake.
Patrycja Lenartowicz   +6 more
wiley   +1 more source

Rhodium-catalyzed denitrogenative transannulation of 1,2,3-triazolyl-carbamates: efficient access to 4-aminooxazolidinones

open access: yes, 2017
Herein we describe a novel Rh(II)-catalyzed intramolecular transannulation reaction of 1,2,3-triazolyl carbamates to access functionalized 4-aminooxazolidinones under operationally simple conditions with low catalyst loadings.
Kuntal Pal   +3 more
core   +1 more source

Flipping the Card With Enantiodivergent Organocatalysis

open access: yesChemistry – A European Journal, EarlyView.
This minireview elaborates on recent organocatalytic strategies for achieving enantiodivergence—the ability to access both product enantiomers using a single chiral catalyst. It highlights how achiral stimuli, such as solvent polarity and chemical additives, along with minimal catalyst modifications, trigger stereochemical inversions in reactions ...
Debora Iapadre   +3 more
wiley   +1 more source

Late‐Stage Modification of Halotryptophan‐Containing Peptides Via Negishi Cross‐Coupling

open access: yesChemistry – A European Journal, EarlyView.
Negishi cross‐coupling provides access to the late‐stage functionalization of bromotryptophan‐containing peptides under comparatively mild conditions and is applicable to a range of peptide substrates in the investigated model systems. The examined alkyl iodides and variation of N‐terminal residues demonstrate the feasibility of the transformation in a
Laura Cerveson   +2 more
wiley   +1 more source

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