Results 81 to 90 of about 8,139 (202)

Diisobutyl 4-(3-ethoxy-4-hydroxyphenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate

Acta Crystallographica Section E, 2012
The asymmetric unit of the title compound, C25H35NO6, contains two independent molecules. In each molecule, the 1,4-dihydropyridine ring adopts a flattened boat conformation. The dihedral angles between the 1,4-dihydropyridine and benzene rings are 87.55&
Hoong-Kun Fun, Madhukar Hemamalini, B. Palakshi Reddy, V. Vijayakumar, S. Sarveswari   +4 more
doaj   +1 more source

Oxygen-Induced Dimerization of Alkyl-Manganese(II) 2,6-Bisiminopyridine Complexes: Selective Synthesis of a New Ditopic NNN-Pincer Ligand [PDF]

, 2016
The outcome of the reaction of manganese(II) dialkyls with 2,6-bisiminopyridine (BIP) ligands is dramatically altered by the presence of very small amounts of oxygen (< 0.5 mol %), leading to binuclear species.
Cámpora Pérez, Juan, Melero, Cristobal, Palma, Pilar, Rodríguez Delgado, Antonio, Sandoval, John J., Álvarez González, Eleuterio   +5 more
core   +4 more sources

Transfer Hydrogenation: Advances in Manganese and Nickel Metal Catalysis

Journal of Chemistry, Volume 2026, Issue 1, 2026.
Transfer hydrogenation (TH) of ketones, catalyzed by transition–metal complexes, produces alcohols, which are important building blocks in the pharmaceutical and fine chemical industries. For a long time, catalysts based on noble metals such as ruthenium, rhodium, and iridium have dominated the TH of ketones.
James Kamau, George S. Nyamato, Joanne Ogunah, Munmun Bardhan   +3 more
wiley   +1 more source

Synthesis and chemical properties of 3-acyl- and 3-carbethoxy-4-pyrones [PDF]

, 2013
Реакция 1-арил-2-диметиламинометиленбутан-1,3-дионов с диэтиоксалатом в присутствии гидрида натрия в ТГФ приводит к образованию этил 5-ароил-4-оксо-4Н-пиран-2- карбоксилатам, из которых 4-оксо-6-арил-4Н-пиран-2-карбоновые кислота (6- арилкомановая ...
Obydennov, D. L., Обыденнов, Д. Л.   +1 more
core  

Troponin T3 regulates nuclear localization of the calcium channel Cavβ1a subunit in skeletal muscle [PDF]

, 2015
The voltage-gated calcium channel (Cav) β1a subunit (Cavβ1a) plays an important role in excitation-contraction coupling (ECC), a process in the myoplasm that leads to muscle-force generation. Recently, we discovered that the Cavβ1a subunit travels to the
Delbono, Osvaldo, Hereñú, Claudia Beatriz, Jiang, Yang, Messi, Maria Laura, Pereyra, Andrea Soledad, Taylor, Jackson, Wang, Zhong Min, Zhang, Tan   +7 more
core   +2 more sources

b-Annulated 1,4-dihydropyridines as Notch inhibitors

Bioorganic & Medicinal Chemistry Letters, 2018
The Notch signaling pathway is involved in cell proliferation and differentiation, and has been recognized as an active pathway in regenerating tissue and cancerous cells. Notch signaling inhibition is considered a viable approach to the treatment of a variety of conditions including colorectal cancer, pancreatic cancer, breast cancer and metastatic ...
Jorge E, Gómez-Galeno, Cecilia, Hurtado, Jiongjia, Cheng, Ceren, Yardimci, Mark, Mercola, John R, Cashman   +5 more
openaire   +3 more sources

Recent Synthetic Advances in C–H/N–H Functionalization of 1H‐Pyrazoles: Diverse Strategies Across Variously Substituted Scaffolds

The Chemical Record, Volume 25, Issue 12, December 2025.
Systematic overview of pyrazole functionalization reactions from C‐5 to N−H. It covers different strategies, from traditional cross‐coupling of prefunctionalized pyrazoles to more efficient direct functionalizations. This review briefly and systematically overviews C–H and N–H functionalization reactions of pyrazoles, aimed at creating new CC and C ...
Karolina Dzedulionytė Müldür, Asta Žukauskaitė, Algirdas Šačkus, Eglė Arbačiauskienė   +3 more
wiley   +1 more source

One-step synthesis of pyridines and dihydropyridines in a continuous flow microwave reactor [PDF]

, 2013
The Bohlmann–Rahtz pyridine synthesis and the Hantzsch dihydropyridine synthesis can be carried out in a microwave flow reactor or using a conductive heating flow platform for the continuous processing of material. In the Bohlmann–Rahtz reaction, the use
Bagley, Mark C, Fusillo, Vincenzo, Jenkins, Robert L, Lubinu, M Caterina, Mason, Christopher   +4 more
core   +2 more sources

Chemistry, Applications, and Synthesis Methods of Indole Derivatives: A Comprehensive Review

The Chemical Record, Volume 25, Issue 12, December 2025.
Indole and its derivatives represent a vital class of heterocycles with broad applications in pharmaceuticals, agrochemicals, and materials science. This review explores their applications, biosynthesis, key derivatives such as tryptophan, and presents an overview of both classical and modern synthetic methodologies, with a focus on sustainable ...
Raphael Silva Moratório de Moraes, Ana Beatriz Mestre Botelho, Gabriel Tavares de Almeida Pinto, Searitha Couto Rodrigues, Maria Tereza Miranda Martins, Deivid Lucas Alves Soares, Camille Cardoso Cruz, Aline de Almeida Pinto, Flaviana Rodrigues Fintelman Dias, Patricia Dias Fernandes, Anna Claudia Cunha   +10 more
wiley   +1 more source

Catalytic Asymmetric Synthesis of Both Enantiomers of 4‑Substituted 1,4-Dihydropyridines with the Use of Bifunctional Thiourea-Ammonium Salts Bearing Different Counterions

Molecules, 2010
Organoammonium salts composed of a Brønsted acid and an anilinothiourea promoted the Michael addition of β-keto esters and α,β-unsaturated aldehydes in the presence of primary amines to give functionalized 1,4-dihydropyridines enantioselectively.
Kohzo Yoshida, Tsubasa Inokuma, Kiyosei Takasu, Yoshiji Takemoto   +3 more
doaj   +1 more source