Results 21 to 30 of about 2,257 (201)
Membranes, 2022 Impressive work has been completed in recent decades on the transmembrane anion transport capability of small synthetic transporters from many different structural classes.
Mariano Andrea Scorciapino +4 more
doaj +1 more source
A Bifunctional Iminophosphorane Squaramide Catalyzed Enantioselective Synthesis of Hydroquinazolines via Intramolecular Aza-Michael Addition to α,β-Unsaturated Esters [PDF]
, 2021 An efficient synthesis of enantioenriched hydroquinazoline cores via a novel bifunctional iminophosphorane squaramide catalyzed intramolecular aza-Michael addition of urealinked α,β-unsaturated esters is described.
Guanglong, Su +6 more
core +2 more sources
Squaramide-Based Supramolecular Materials for Three-Dimensional Cell Culture of Human Induced Pluripotent Stem Cells and Their Derivatives [PDF]
, 2018 Synthetic hydrogel materials can recapitulate the natural cell microenvironment; however, it is equally necessary that the gels maintain cell viability and phenotype while permitting reisolation without stress, especially for use in the stem cell field ...
Marco M. R. M. Hendrix (2122975) +9 more
core +2 more sources
Tetrahedron Chem, 2022 An enantio- and diastereodivergent [2+2+1] annulation reaction of allyl ketones, acidic methylene compounds, and nitroalkenes to assemble highly functionalized cyclopentanes from readily available substances enabled by asymmetric relay catalysis of ...
Lian-Feng Fan +3 more
doaj +1 more source
Glycosyl squaramides, a new class of supramolecular gelators [PDF]
Soft Matter, 2020 First example of glycosyl squaramides that induce the efficient gelation of high polarity solvents and hydroethanolic mixtures.
Jessica Ramos +7 more
openaire +3 more sources
Catalytic Enantioselective Intramolecular Aza-Michael Addition to α,β-Unsaturated Esters. [PDF]
Angew Chem Int Ed EnglA general method for accessing enantioenriched saturated N‐heterocycles via a catalytic enantioselective intramolecular aza‐Michael reaction to α,β‐unsaturated esters is described. A superbasic bifunctional iminophosphorane (BIMP) catalyst was key to enabling reactivity of the high pKa sulfonamide pronucleophile, whilst delivering good to excellent ...
Rutter EGW +5 more
europepmc +3 more sources
Journal of Integrative Neuroscience, 2019 Vascular dementia is the second most common type of dementia, yet no effective treatment for it exists. Akt and Erk1/2 signaling pathways are involved in neuronal survival.
Meichun Yuan +5 more
doaj +1 more source
The role of indolyl substituents in squaramide-based anionophores
Organic & Biomolecular Chemistry, 2022 A new family of squaramide-based anionophores (L1–L8) have been synthesised and fully characterised with the aim to investigate the effect of indolyl substituents on their anion binding and transmembrane transport properties.
Picci, Giacomo +7 more
openaire +5 more sources
Squaramide Structure and Interactions with Benzene [PDF]
, 2021 The chemical industry’s continued reliance on expensive and toxic metal catalysts has driven the search for greener and more sustainable alternatives.
Tressler, Serina
core +1 more source
Synthesis and supramolecular self-assembly of glutamic acid-based squaramides
Beilstein Journal of Organic Chemistry, 2018 We describe the preparation and characterization of two new unsymmetrical squaramide-based organogelators. The synthesis of the compounds was carried out by subsequent amine condensations starting from dimethyl squarate.
Juan V. Alegre-Requena +6 more
doaj +1 more source