Results 101 to 110 of about 115,489 (367)

Structure determination of a 4-pyrone from the liverwort Plagiochila bifaria (Sw.) Lindenb. (Plagiochilaceae) [PDF]

, 2008
The centenary of the presentation in 1907 of the "polyketide" hypothesis by Collie, along with his use of a 4-pyrone as an example, is marked by reporting the discovery and isolation of 2-(3,4-dimethoxyphenethyl)-6-methyl-4-pyrone from <i> ...
Rycroft, D.S.
core  

Bio‐Inspired Cascade Photocatalysis on Fe Single‐Atom Carbon Nitride Upcycles Plastic Wastes for Effective Acetic Acid Production

Advanced Energy Materials, EarlyView.
This work demonstrates a novel cascade photocatalysis concept using Fe single‐atom catalysts (Fe@C3N4 SAC) to directly upcycle plastics (PET, PP, PE, PVC) into valuable acetic acid at ambient conditions. Inspired by microbial degradation, the bifunctional cascade photocatalyst combines Fenton‐like oxidation and CO2 photoreduction, as validated by ...
Wei Wei, Cheng Du, Jiawei Ge, Xiang Wang, Zuolong Chen, Meng Zhang, Tao Guo, Lei Wang, Maoyu Wang, Yuzi Liu, Hua Zhou, Chengjun Sun, Ning Chen, Weifeng Chen, Brant Billinghurst, Mohsen Shakouri, Peter Sprenger, Fatemeh Fani Sani, Yulian Quan, Brian Kendall, Roy Brouwer, Yimin A. Wu   +21 more
wiley   +1 more source

Biomasses of different Salix L. clones in the decarboxylation process during energy production [PDF]

Zbornik Matice Srpske za Prirodne Nauke
Biomass is increasingly employed in diverse applications to achieve and enhance energy efficiency, owing to its carbon-neutral nature. This is attributed to the fact that the quantity of CO2 released during its combustion corresponds precisely ...
Urošević Jelena D., Rodzkin Aleh I., Jovanović Filip A., Tadić Vojin M., Trivan Goran Đ., Stanković Dragica M.   +5 more
doaj   +1 more source

Photochemistry of N-(selenoalkyl)-phthalimides. Formation of N, Se-heterocyclic systems [PDF]

, 2015
A variety of N-(selenomethyl)alkyl-phthalimides (alkyl = -(CH2)n-; n = 2-5, 1a, b, d, e) and N-(selenobenzyl)propyl phthalimide (1c) were synthesized and their photochemistry was studied at λ = 300 nm.
Argüello, Juan Elias, Heredia, Adrián Alberto, Oksdath Mansilla, Gabriela, Peñeñory, Alicia Beatriz   +3 more
core   +1 more source

Breaking Down Lignin: A Macromolecule's Path to the Nanoscale

Advanced Energy and Sustainability Research, EarlyView.
This section highlights lignin's critical role as a sustainable, multifunctional precursor for nanomaterial design. Its unique structure and abundance enable the creation of lignin‐based, lignin‐derived, and hybrid nanomaterials with tunable properties. Emphasis is placed on lignin's potential to drive innovation in nanotechnology, offering ecofriendly
Jelena Papan Djaniš, Jan Hočevar, Griša Grigorij Prinčič, Jernej Iskra   +3 more
wiley   +1 more source

Radical Mediated Decarboxylation of Amino Acids via Photochemical Carbonyl Sulfide (COS) Elimination

Molecules
Herein, we present the first examples of amino acid decarboxylation via photochemically activated carbonyl sulfide (COS) elimination of the corresponding thioacids.
Alby Benny, Lorenzo Di Simo, Lorenzo Guazzelli, Eoin M. Scanlan   +3 more
doaj   +1 more source

Manganese (III)-Bis(salicylaldehyde)-4-Methyl-1,2-Phenylenediimine (Mn-BSMP) as an Inexpensive N2O2 Type Schiff Base Catalyst for Oxidative Decarboxylation of Carboxylic Acids with (n-Bu4NIO4) in the Presence of Imidazol [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2011
In this study, bis(salicylaldehyde)-4-methyl-1,2-phenylenediimine (BSMP) as a Schiff base ligand of N2O2-type and its Mn and Fe complex as M-BSMP catalyst were synthesized and characterized by UV-Vis, IR spectroscopy and elemental analysis.
Gholamreza Karimipour, Morteza Montazerozohori, Nasrin Haghighat Naeini   +2 more
doaj  

Switchable selectivity in Pd-catalyzed [3 + 2] annulations of γ-oxy-2-cycloalkenones with 3-oxoglutarates: C–C/C–C vs C–C/O–C bond formation

Beilstein Journal of Organic Chemistry, 2019
Two complementary [3 + 2] annulation protocols between 3-oxoglutarates and cyclic γ-oxy-2-cycloalkenones, simply differing on the reaction temperature, are disclosed.
Yang Liu, Julie Oble, Giovanni Poli
doaj   +1 more source

Effects of formulation and baking process on acrylamide formation in Kolompeh, a traditional cookie in Iran [PDF]

, 2019
Thermal treatments and recipes are two critical aspects for the formation of acrylamide at ordinary household cooking conditions and industrial level. Kolompeh is a traditional Iranian cookie, and the aim of this study was to monitor acrylamide formation
Fiore, Alberto, Ghasemi, Sajad, Shakeri, Fatemeh, Shakeri, Somayeh, Troise, Antonio Dario   +4 more
core   +2 more sources

Bayesian Optimization Guiding the Experimental Mapping of the Pareto Front of Mechanical and Flame‐Retardant Properties in Polyamide Nanocomposites

Advanced Intelligent Discovery, EarlyView.
Bayesian optimization enabled the design of PA56 system with just 8 wt% additives, achieving limiting oxygen index 30.5%, tensile strength 80.9 MPa, and UL‐94 V‐0 rating. Without prior knowledge, the algorithm uncovered synergistic effects between aluminum diethyl‐phosphinate and nanoclay.
Burcu Ozdemir, Miguel Hernández‐del‐Valle, Christina Schenk, De‐Yi Wang, Maciej Haranczyk   +4 more
wiley   +1 more source