Results 111 to 120 of about 456,445 (341)

Biodegradable and Recyclable Luminescent Mixed‐Matrix‐Membranes, Hydrogels, and Cryogels based on Nanoscale Metal‐Organic Frameworks and Biopolymers

Advanced Functional Materials, EarlyView.
The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner, Julian Burkhart, Kateryna Borysova, Chiara Mazzariol, Klaus Müller‐Buschbaum   +4 more
wiley   +1 more source

Stereodivergent, Diels-Alder-initiated organocascades employing α,β-unsaturated acylammonium salts: scope, mechanism, and application. [PDF]

, 2017
Chiral α,β-unsaturated acylammonium salts are novel dienophiles enabling enantioselective Diels-Alder-lactonization (DAL) organocascades leading to cis- and trans-fused, bicyclic γ- and δ-lactones from readily prepared dienes, commodity acid chlorides ...
Abbasov, Mikail E, Hudson, Brandi M, Romo, Daniel, Tantillo, Dean J   +3 more
core   +2 more sources

Wavelength‐Dependent Differential Amplification of Raman Scattering by Chiral Gold Nanorods for Multiplexed Encoding

Advanced Functional Materials, EarlyView.
The SERS spectra of reporter molecules adsorbed on chiral gold nanorods depends on the handedness of circularly polarized light (CPL‐SERS). The bisignate plasmonic CD spectra of chiral nanorods provides wavelength‐dependent CPL‐SERS. Selective discrimination of chiral nanorod handedness and different Raman reporters allow highly sensitive codification ...
Andrés Serrano‐Freijeiro, Carlos Renero‐Lecuna, Manuel Obelleiro‐Liz, Víctor F. Martín, Diptesh Dey, José M. Taboada, George C. Schatz, Isabel Pastoriza‐Santos, Jorge Pérez‐Juste, Luis M. Liz‐Marzán   +9 more
wiley   +1 more source

Syntheses of (+)-30-epi-, (-)-6-epi-, (±)-6,30-epi-13,14-didehydroxyisogarcinol and (±)-6,30-epi-garcimultiflorone A utilizing highly diastereoselective, Lewis acid-controlled cyclizations [PDF]

, 2016
The first syntheses of 13,14-didehydroxyisogarcinol (6) and garcimultiflorone A (5) stereoisomers are reported in six steps from a commercially available phloroglucinol.
Boyce, Jonathan H., Eschenbrenner-Lux, Vincent, Porco, John A.   +2 more
core   +1 more source

Catalytic Asymmetric Synthesis [PDF]

Accounts of Chemical Research, 2000
S E, Denmark, E N, Jacobsen
openaire   +2 more sources

Highly Sensitive Electrochemical Biosensor Based on Hairy Particles with Controllable High Enzyme Loading and Activity

Advanced Functional Materials, EarlyView.
For the first time, a highly sensitive electrochemical biosensor based on SiO2‐based hairy particles with a grafted PDMAEMA polymer brush containing a quantifiable and large amount of immobilized Laccase is reported. The fabricated biosensor exhibits a sensitivity of 0.14 A·m⁻¹, a limit of detection (LOD) of 0.1 µm, and a detection range of 0.3–750 µm,
Pavel Milkin, Anila Antony, Hongtao Cai, Antonia Debevc, Ceyda Topal, Anne Linhardt, Alla Synytska, Leonid Ionov   +7 more
wiley   +1 more source

Studies directed toward the exploitation of vicinal diols in the synthesis of (+)-nebivolol intermediates

Beilstein Journal of Organic Chemistry, 2017
While the exploitation of the Sharpless asymmetric dihydroxylation as the source of chirality in the synthesis of acyclic molecules and saturated heterocycles has been tremendous, its synthetic utility toward chiral benzo-annulated heterocycles is ...
Runjun Devi, Sajal Kumar Das
doaj   +1 more source

Chiral phosphoric acid-catalyzed stereodivergent synthesis of trisubstituted allenes and computational mechanistic studies

Nature Communications, 2020
Despite of the high demand of chiral allenes, their asymmetric synthesis remains a challenge for organic chemists. Here, the authors report a stereodivergent synthesis of trisubstituted allenes via asymmetric additions of oxazolones to activated 1,3 ...
Jiawen Wang, Sujuan Zheng, Subramani Rajkumar, Jinglei Xie, Na Yu, Qian Peng, Xiaoyu Yang   +6 more
doaj   +1 more source

Modification of chiral dimethyl tartrate through transesterification : immobilisation on POSS and enantioselectivity reversion in Sharpless asymmetric epoxidation [PDF]

, 2010
Modification of dimethyl tartrate has been investigated through transesterification with aminoalcohols to provide reactive functionalities for the covalent bonding of chiral tartrate to polyhedral oligomeric silsesquioxanes.
García, Rafael A., Gibson, Colin L., Iglesias, José, Sherrington, David C., Van Grieken, Rafael   +4 more
core   +1 more source

Organocatalysts for the Asymmetric Neber reaction: Synthesis of Chiral 2‐(Tetrazol‐5‐yl)‐2 H ‐Azirines [PDF]

, 2023
Cláudia Alves, Terver John Sase, Cristina Gadelho, Dina Murtinho, M. Elisa Silva Serra, Ana L. Cardoso, Teresa M. V. D. Pinho e Melo   +6 more
openalex   +1 more source