Results 61 to 70 of about 357,701 (311)

Effect of fungal pre-treatment of poplar chips on its paper brightness reversion [PDF]

Iranian Journal of Wood and Paper Industries, 2017
Unbleached Kraft pulp made from poplar chips, Pre-treated by Trametes versicolor in 1, 2 and 3 weeks (Bio-Kraft pulp), was used as raw material in this study.
Esmaeil Rasooly Garmaroody, hossein fooladi, seyed rahman Djafari Petroudy   +2 more
doaj  

Carbonyl-Ene Reactions Catalyzed by Bis(oxazoline) Copper (II) Complexes Proceed by a Facile Stepwise Mechanism:  DFT and ONIOM (DFT:PM3) Studies

, 2016
The mechanism of a carbonyl-ene addition reaction catalyzed by a bis(oxazoline) copper (II) complex has been studied using DFT methods. We find that the reaction proceeds by a stepwise mechanism with very low barriers and have identified the role of the ...
Iñaki Morao (2509198), Jonathan P. McNamara (2378410), Ian H. Hillier (1296210)   +2 more
core   +1 more source

Intrinsic Photoactive Star ZnPc–Poly(glutamate) Nanoplatforms for Multimodal Glioblastoma Therapy and Brain‐Targeted Delivery

Advanced Functional Materials, EarlyView.
An intrinsic photoactive star‐shaped zinc phtalocyanine‐poly(L‐glutamic acid) (ZnPc‐PGA) nanoplatform for multimodal glioblastoma (GBM) therapy and brain‐targeted elivery. A ZnPc‐PGA‐based multifunctional theranostic nanocarrier platform enables image‐guided, multimodal GBM therapy. ZnPc‐PGA nanocarriers support the integration of fluorescence imaging,
Amina Benaicha‐Fernández, Teodora Ranđelović, Ana Armiñán, Víctor Sebastián, Manuel Fuentes, Cristián Huck‐Iriart, Esther Masiá, Paula Carrascosa‐Marco, Pablo Juanes‐Velasco, Snežana Đorđević, Clara Bayona, Ignacio Ochoa, Maria Medel, Inmaculada Conejos‐Sánchez, María J. Vicent   +14 more
wiley   +1 more source

Alcohol and Carbonyl Redox Reactions in Electrochemical Organic Synthesis

ChemistryEurope
The primary aim of this review is to provide an overview of relevant and efficient methods in organic electrosynthesis, presented in a reader‐friendly format.
Fiammetta Vitulano, Andrea Solida, Letizia Sorti, Carlo F. Morelli, Alessandro Minguzzi, Alberto Vertova   +5 more
doaj   +1 more source

13C NMR reveals no evidence of n-π* interactions in proteins. [PDF]

PLoS ONE, 2012
An n = π* interaction between neighboring carbonyl groups has been postulated to stabilize protein structures. Such an interaction would affect the (13)C chemical shielding of the carbonyl groups, whose paramagnetic component is dominated by n = π* and π
Bradley Worley, Georgia Richard, Gerard S Harbison, Robert Powers   +3 more
doaj   +1 more source

Dipole‐Engineered Conductive Additives for Ultrastable Interphase Evolution in High‐Areal‐Capacity Silicon Anodes

Advanced Functional Materials, EarlyView.
In the work reported herein, dipole‐engineered sulfonated carbon nanofibers enable conductive additives to actively regulate interphase formation in silicon anodes. Polar sulfonyl groups guide electrolyte decomposition to form a compact LiF‐rich interphase while promoting robust integration with silicon.
Song Kyu Kang, Hyeonju Kim, Jeongbin Cho, Minseon Park, Taehun Kim, Seonghun Sin, Won Bae Kim   +6 more
wiley   +1 more source

C2 to C6 biobased carbonyl platforms for fine chemistry

Beilstein Journal of Organic Chemistry
The carbonyl group is central in organic synthesis, thanks to its ability to undergo a vast range of different chemical transformations on its carbon center or at the neighboring positions.
Jingjing Jiang, Muhammad Noman Haider Tariq, Florence Popowycz, Yanlong Gu, Yves Queneau   +4 more
doaj   +1 more source

1,3-Dipolar Cycloaddition Reactions of Azomethine Ylides with Carbonyl Dipolarophiles Yielding Oxazolidine Derivatives

Molecules, 2016
We provide a comprehensive account of the 1,3-dipolar cycloaddition reactions of azomethine ylides with carbonyl dipolarophiles. Many different azomethine ylides have been studied, including stabilized and non-stabilized ylides.
Adam G. Meyer, John H. Ryan
doaj   +1 more source

Unified Synthesis of Polycyclic Alkaloids via Complementary Carbonyl Activation

, 2021
A complementary dual carbonyl activation strategy for thesynthesis of polycyclic alkaloids has been developed. Successful applications include the synthesis of tetracyclic alkaloids harmalanine, harmalacinine, pentacyclic indoloquinolizidine alkaloid ...
Guoli, He, Benjamin, List, Mathias, Christmann   +2 more
core   +1 more source

Clusterization‐Triggered Emission from Cellulose‐Based Luminophores in Dilute Aqueous Solution through Imine Formation

Advanced Functional Materials, EarlyView.
Clusterization‐triggered emission is realized in dilute aqueous solution by introducing imine linkages into cellulose‐based luminophores. Imine functionalization creates O/N‐rich, hydrogen‐bonded clustered microenvironments that stabilize emissive states and restrict molecular motions. Luminescence is tunable by amine type and multiplicity.
Yazhou Su, Akihide Sugawara, Madhurangika Panchabashini Horathal Pedige, Youhei Takeda, Satoshi Minakata, Hiroshi Uyama   +5 more
wiley   +1 more source