Results 91 to 100 of about 17,972 (231)
Synthesis of Spiroisoxazolines by 1,3-Dipolar Cycloaddition
Molecules, 1997 The cycloaddition of the chiral nitrile oxide 1 to 1-R-substituted 3,3-methylene-5,5-dimethyl-2-pyrrolidinones 2 (where R is H, n-butyl-, 1,1-dimethylethoxycarbonyl-, 1-methylethenyl- and acetyl-) proceeds regioselectively under the formation of ...
Peter Ertl +3 more
doaj +1 more source
Asymmetric Lewis acid-catalyzed 1,3-dipolar cycloadditions [PDF]
, 2017 Highly tuned, one-point binding chiral iron and ruthenium complexes selectively coordinate and activate α,β-unsaturated aldehydes and ketones toward asymmetric catalytic Diels-Alder cycloaddition reactions.
Brinkmann, Yasmin +3 more
core
Structure and Mechanism of PhdC, a Prenylated‐Flavin Maturase
Proteins: Structure, Function, and Bioinformatics, Volume 94, Issue 5, Page 1019-1029, May 2026.ABSTRACT Prenylated flavin mononucleotide (prFMN) is a modified flavin cofactor required by the UbiD family of (de)carboxylase enzymes. While the reduced prFMNH2 form is produced by the flavin prenyltransferase UbiX, the corresponding two‐electron oxidized prFMNiminium form is required to support UbiD catalysis. Thus, oxidative maturation of prFMNH2 is
Dominic R. Whittall +4 more
wiley +1 more source
Orbital: The Electronic Journal of Chemistry, 2012 We have been synthesized various glycosyl triazoles from the reaction between glycosyl azide (1) and terminal alkynes (2a-g). The glycopiranosyl 1,2,3-triazoles (3-9) have been obtained in moderate-to-excellent yields (63-99%) through the copper (I ...
Gilson Bezerra Silva +1 more
doaj +1 more source
Recent Developments in Sustainable Solubilization
ChemSusChem, Volume 19, Issue 8, 28 April 2026.We highlight several recent developments in sustainable solubilization. Particular attention is given to the use of bio‐based solvents derived from renewable resources, the strategic use of water as a solvent, and alternative, sustainable solubilizers such as hydrotropes.
Eva Müller, Werner Kunz
wiley +1 more source
Catalytic enantioselective synthesis of quaternary carbon stereocentres. [PDF]
, 2014 Quaternary carbon stereocentres-carbon atoms to which four distinct carbon substituents are attached-are common features of molecules found in nature. However, before recent advances in chemical catalysis, there were few methods of constructing single ...
Overman, Larry E, Quasdorf, Kyle W
core
ChemSusChem, Volume 19, Issue 8, 28 April 2026.Heterogeneous catalysis has historically been developed in the gas phase, however, we have found it pertinent to highlight solvent effects that must be accounted for in liquid environments. Condensed phase catalysis, like that in biomass, petroleum and the conversion of CO2, stands to benefit from the typically overlooked discussion regarding the ...
Jim B. Floyd +3 more
wiley +1 more source
Beilstein Journal of Organic Chemistry, 2016 A series of spiro[isoindole-1,5-isoxazolidin]-3(2H)-ones has been synthesized by 1,3-dipolar cycloaddition of N-benzylnitrone with isoindolin-3-methylene-1-ones.
Salvatore V. Giofrè +10 more
doaj +1 more source
Glycerol: a biorenewable solvent for base-free Cu(I)-catalyzed 1,3-dipolar cycloaddition of azides with terminal and 1-iodoalkynes. Highly efficient transformations and catalyst recycling [PDF]
, 2014 Ministerio de Ciencia e Innovacin (MICINN) of Spain [CTQ2010-14796, RYC-2011-08451]; MICINN; European Social ...
García Álvarez, Joaquín +1 more
core +1 more source
Synthesis of an Enzyme‐Triggered Chitosan‐Based Drug Delivery System for Peri‐Implantitis Prevention
Chemistry – A European Journal, Volume 32, Issue 16, 25 April 2026.ABSTRACT Dental implants have become a leading solution for tooth loss, yet bacterial infections remain a major complication. Antibacterial implant coatings are an important approach to reduce or prevent bacterial infections at the implant. Given the oral cavity's complex microbiome and the importance of some commensal bacteria, it is crucial to ...
Nelly Senze Nnane +7 more
wiley +1 more source