Results 91 to 100 of about 350,851 (339)
Synthesis of 1-azaspiro[4.4]nonan-1-oxyls via intramolecular 1,3-dipolar cycloaddition
Beilstein Journal of Organic Chemistry, 2019 Sterically shielded nitroxides of the pyrrolidine series have shown the highest resistance to reduction. Here we report the synthesis of new pyrrolidine nitroxides from 5,5-dialkyl-1-pyrroline N-oxides via the introduction of a pent-4-enyl group to the ...
Yulia V. Khoroshunova +5 more
doaj +1 more source
Luddin type anthraquinone glycosides from Putoria calabrica [PDF]
, 2002 Two new lucidin type anthraquinone glycosides, putorinoside A (1) and putorinoside B (2) were isolated from Putoria calabrica, in addition to two known anthraquinone glycosides, lucidin 3-O-β-glucopyranoside (3) and lucidin 3-O-primeveroside (4).
Chris M. Ireland +4 more
core +1 more source
2-[2-(Hydroxymethyl)phenyliminomethyl]phenol
Acta Crystallographica Section E Structure Reports Online, 2004 Molecules of the title compound, C14H13NO2, are nearly planar. The molecular structure is stabilized by a strong intramolecular O—H⋯N hydrogen bond between the imine and hydroxyl groups [O⋯N = 2.614 (2) A]. In the crystal structure, intermolecular O—H⋯O hydrogen bonds [O⋯O = 2.681 (3) and 2.641 (3) A] link inversion-related molecules into chains ...
Ersanli, CC +3 more
openaire +2 more sources
Advanced Science, EarlyView.A new zinc hybrid guanidine catalyst [Zn{(R,R)TMGNMe2(1,2)ch}2](OTf)2 (C1) shows very high catalytic activity in the polymerization of cyclic esters and in the depolymerization of these polyesters. Using C1 in the ring‐opening polymerization of lactide and caprolactone under industrially relevant conditions, astonishing rate constants of the same order
Tabea Becker +8 more
wiley +1 more source
Fractionation of human immune γ-globulin [PDF]
, 1950 Equine and bovine serum proteins have recently been fractionated by means of a physical method utilizing an electrophoretic adaptation of the principles of the Clusius column (l-4), first described and tested by Kirkwood (5) and Nielsen (6).
Brown, Raymond A. +3 more
core
Advanced Science, EarlyView.The report presents a facile room‐temperature method to stabilize Pd single‐atom catalysts within ZIF‐67 crystals during their formation. Despite an ultralow Pd loading (0.0014 wt%), the catalytic microreactor, featuring atomically dispersed Pd‐N4 sites in ZIF‐67, demonstrates superior robustness and maximized Pd utilization, significantly ...
Sisi Yao +6 more
wiley +1 more source
The influence of in vitro gastrointestinal digestion on the chemical composition and antioxidant and enzyme inhibitory capacities of carob liqueurs obtained with different elaboration techniques [PDF]
, 2019 Carob liqueur is a traditional Mediterranean alcoholic beverage obtained via a wide range of production techniques contributing to the different organoleptic attributes of the final product.
Coelho, Natacha +5 more
core +1 more source
Ionic–Bionic Interfaces: Advancing Iontronic Strategies for Bioelectronic Sensing and Therapy
Advanced Science, EarlyView.Ionic–bionic interfaces for bioelectronics leverage ions as multifunctional mediators that combine mechanical compliance, ionic and electronic functionalities, and therapeutic effects. These systems offer real‐time biosignal transduction, effective wound dressing, responsive drug delivery, and seamless interaction between soft tissues and electronic ...
Yun Goo Ro +6 more
wiley +1 more source
Solvent and thermal stability, and pH kinetics, of proline-specific dipeptidyl peptidase IV-like enzyme from bovine serum [PDF]
, 2007 Proline-specific dipeptidyl peptidase-like (DPP IV; EC 3.4.14.5) activity in bovine serum has attracted little attention despite its ready availability and the paucity of useful proline-cleaving enzymes.
Abbott +43 more
core +1 more source