Results 81 to 90 of about 23,273 (217)
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
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
1,3-Dipolar Cycloadditions of N-Benzyl Furfuryl Nitrones with Electron-rich Alkenes
Molecules, 2000 The 1,3-dipolar cycloaddition reaction of N-benzyl-C-(2-furyl)nitrones with electron-rich alkenes gives preferentially trans-substituted 3,5-disubstituted isoxazolidines (endo approach).
Tomas Tejero +3 more
doaj +1 more source
Syntheses and Characterizations of Some New N-alkyl, Isoxazole and Dioxazole Derivatives of 5-Chloroisatin [PDF]
, 2017 N-alkyl and cycloadducts derivatives of 5-Chloroisatin were synthesized in good to excellent yields. The method evidences a selective N-alkylation when using 1,2-bis (2-chloroethoxy) ethane as efficient spacer at room temperature on the 5-Chloroisatin ...
Rodi, Y. K. (Y) +3 more
core +1 more source
PharmaceuticalsBackground: This research centers on the development and spectroscopic characterization of new quinazolin-4(3H)-one-isoxazole derivatives (5a–e). The aim was to investigate the regioselectivity of the 1,3-dipolar cycloaddition involving arylnitriloxides ...
Yassine Rhazi +13 more
doaj +1 more source
One-pot Microwave-Assisted Synthesis of 1H-Phenanthro[9,10- d][1,2,3]triazole
Molbank, 2008 In this study, a fast and good yield one-pot microwave-assisted synthesis (45 seconds) of 1H-phenanthro[9,10-d][1,2,3]triazole by a 1,3-dipolar cycloaddition reaction of sodium azide and 9-bromophenanthrene in the presence of potassium tert-butoxide in ...
Mehrak Faraji, Avat Arman Taherpour
doaj +1 more source
1,3-dipolar cycloadditions of aldehydes or Imines with carbonyl ylides generated from epoxides: Classical heating and microwave irradiation [PDF]
, 2007 International audienceCycloadditions of aldehydes with carbonyl ylides to give dioxolanes have been carried out without solvent under microwave irradiation. The reactions proceeded in similar yields and stereoselectivities, but in shorter reaction times,
Bazureau, Jean-Pierre +5 more
core +3 more sources
Advanced Sustainable Systems, Volume 10, Issue 4, April 2026.A bio‐based palladium‐ligated polymer catalyst was achieved through COS/eugenol‐epoxide copolymerization and post‐polymerization functionalisation using click chemistry. The resulting hybrid catalyst efficiently catalyses Suzuki cross‐coupling reactions at low catalyst loadings with excellent recyclability.
Mohsin Hassan +2 more
wiley +1 more source
Orbital: The Electronic Journal of Chemistry, 2010 Naphthoquinones are known according to their important bio-activities, such as their antitumoral and topoisomerase inhibition properties. From 2-azido (3) or 2,3-diacetylene-1,4-naphthoquinone (4) it was possible to obtain triazole derivatives ...
Wilson Silva do Nascimento +3 more
doaj