Results 61 to 70 of about 166,984 (347)

The Usefulness of Trivalent Phosphorus for the Synthesis of Dendrimers

Molecules, 2021
Dendrimers are hyperbranched macromolecules, which are synthesized step-by-step by the repetition of a series of reactions. While many different types of dendrimers are known, this review focusses on the use of trivalent phosphorus derivatives ...
Anne-Marie Caminade, Kathleen I. Moineau-Chane Ching, Béatrice Delavaux-Nicot   +2 more
doaj   +1 more source

Chamber‐Specific Decellularized Extracellular Matrices Differentially Modulate Cardiomyocyte Subtypes to Drive Engineered Heart Tissue Development and Function

Advanced Healthcare Materials, EarlyView.
Chamber‐specific decellularized extracellular matrices (ECMs) were developed, preserving native proteomic profiles of ventricular and atrial myocardium. These innate biochemical cues differentially modulate cardiomyocyte subtypes to drive engineered heart tissue development and function, highlighting the importance of incorporating regional ECM cues in
Dong Gyu Hwang, Myungji Kim, Hwanyong Choi, Jinseon Park, Minji Kim, Donghwan Kim, Bo Ram Lee, Jinah Jang   +7 more
wiley   +1 more source

Reaction of Some Substituted (Un)Substituted Isatins with 1,ω-Alkanes and Their Products with Sodium Azide

Chemistry Proceedings, 2021
Azide derivatives of isatins were the initial materials needed for click chemistry, so as to form 1,2,3-triazoles in order to synthesize the hybrid compounds of 1,2,3-triazole–isatin with monosaccharide moieties.
Nguyen Minh Tri, Vu Ngoc Toan, Hoang Mai Linh, Ngo Thi Ngoc Mai, Tran Thi-Hai-Yen, Ngo Thi Thuy, Nguyen Thi Thuy Huong, Pham Thi Thuy Van, Tran Thi Hai Yen, Nguyen Thi Kim Giang, Hoang Thi Kim Van, Nguyen Dinh Thanh   +11 more
doaj   +1 more source

Few layer 2D pnictogens catalyze the alkylation of soft nucleophiles with esters [PDF]

Nature Communications, 2019
Group 15 elements in zero oxidation state (P, As, Sb and Bi), also called pnictogens, are rarely used in catalysis due to the difficulties associated in preparing well–structured and stable materials. Here, we report on the synthesis of highly exfoliated,
Vicent Lloret, Miguel A Rivero-Crespo, J. A. Vidal-Moya, S. Wild, A. Doménech‐Carbó, Bettina S. J. Heller, Sunghwan Shin, H. Steinrück, F. Maier, F. Hauke, M. Varela, A. Hirsch, A. Leyva–Pérez, Gonzalo Abellán   +13 more
semanticscholar   +1 more source

C–H Alkylation of Cubanes via Polar Effect-Assisted Photocatalytic Generation of Cubyl Radicals

, 2023
A method for C–H alkylation of cubanes is described herein. A hydrogen atom–transfer catalyst enables direct abstraction of a hydrogen atom from the C–H bond of cubanes, followed by conjugate addition of the generated cubyl radicals to various Michael ...
Masaki, Hosaka, Shota, Nagasawa, Yoshiharu, Iwabuchi   +2 more
core   +1 more source

Bioorthogonal Photoactivation of 2‐Nitrobenzyl Caged Doxorubicin Anticancer Prodrugs on Gold Nanostars

Advanced Materials, EarlyView.
Bioorthogonal chemistry was applied to intracellularly photoactivate Doxorubicin (Dox) using gold nanostars (AuNSt) and near‐infrared (NIR) light. Two prodrugs were used: one photoactivatable, masked with 2‐nitrobenzyl carbamate (proDox1) and another photolabile, masked with 2‐nitrobenzyl diol (proDox2), which was attached to the AuNSt surface.
Juan José Esteve‐Moreno, Andrea Escudero, Oscar Ferreira Silvestre, José Manuel Terrés, Mónica Gorbe, Eva Garrido, Carlos Renero‐Lecuna, Judith Langer, María Alfonso, Javier Ibañez, Félix Sancenón, Roberto Cao‐Milán, Luis M. Liz‐Marzán, Alba García‐Fernández, Andy Hernández‐Montoto, Ramón Martínez‐Máñez   +15 more
wiley   +1 more source

Enable biomass-derived alcohols mediated alkylation and transfer hydrogenation

Nature Communications
A single-atom catalyst with generally regarded inert Zn–N4 motifs derived from ZIF-8 is unexpectedly efficient for the activation of alcohols, enabling alcohol-mediated alkylation and transfer hydrogenation. C-alkylation of nitriles, ketones, alcohols, N-
Xixi Liu, Liang Huang, Yuandie Ma, Guoqiang She, Peng Zhou, Liangfang Zhu, Zehui Zhang   +6 more
doaj   +1 more source

Catalytic Alkylation of Remote C-H Bonds Enabled by Proton-Coupled Electron Transfer

Nature, 2016
Despite advances in hydrogen atom transfer (HAT) catalysis, there are currently no molecular HAT catalysts that are capable of homolysing the strong nitrogen–hydrogen (N–H) bonds of N-alkyl amides.
Gilbert J. Choi, Qilei Zhu, David C. Miller, Carol J. Gu, R. Knowles   +4 more
semanticscholar   +1 more source

Biochemical characterization and DNA repair pathway interactions of Mag1-mediated base excision repair in Schizosaccharomyces pombe

, 2005
The Schizosaccharomyces pombe mag1 gene encodes a DNA repair enzyme with sequence similarity to the AlkA family of DNA glycosylases, which are essential for the removal of cytotoxic alkylation products, the premutagenic deamination product hypoxanthine ...
Alseth, I, Whitby, MC, Bjoras, M, Korvald, H, Tsaneva, I, Bjørås, M, Whitby, Matthew, Seeberg, E, Osman, F   +8 more
core   +1 more source

Redox-Neutral Synthesis of Sulfilimines through the S-Alkylation of Sulfenamides

, 2023
Sulfilimines are a class of bioisosteres with immense potential in medicinal chemistry, characterized by the presence of a tetravalent sulfur atom bearing one nitrogen and two distinct carbon substitutes.
Xunbo, Lu, Guoling, Huang, Xinyu, Xu, Kaiyuan, Yang   +3 more
core   +1 more source