Results 41 to 50 of about 388 (112)

Photoassisted Synthesis of Complex Polyheterocycles via Rational Design of Tailored Photoprecursors [PDF]

, 2021
Natural products remain the most common source for drug leads, although diversity-oriented synthesis of unnatural complex molecules is gaining momentum. Our lab has been developing experimentally simple and straightforward approaches to complex molecular
Holt, Tina Alanna
core   +1 more source

Photoinduced “Double Click” Cascade Offers Access to Complex Polyheterocycles from Readily Available Isatin-Based Photoprecursors

, 2016
The cascade photoassisted synthetic strategy for accessing complex N,O-polyheterocycles of unprecedented molecular architecture is developed. It is based on intramolecular cycloadditions of aza-o-xylylenes formed in situ via excited-state intramolecular ...
Andrei G. Kutateladze (1344246), Olga A. Mukhina (1344252), Kutateladze, Andrei G., Mukhina, Olga A., Cronk, William Cole, William Cole Cronk (2888768)   +5 more
core   +1 more source

Photoassisted Generation of Complex N, O, S Polyheterocycles [PDF]

, 2016
This research set out to continue the exploration and diversification of excited state o-azaxylylene cycloadditions, utilizing both pre-photochemical and post-photochemical modifications.
Umstead, Weston James
core   +1 more source

Enhancing the Photocatalytic Activity via Direct Covalent Functionalization in Single‐Walled Carbon Nanotubes

Advanced Functional Materials, Volume 34, Issue 14, April 3, 2024.
The control on the direct functionalization of single‐walled carbon nanotubes with the organophotocatalyst PTH allowed the creation of hybrid materials with enhanced charge transfer properties able to overcome homogeneous counterparts in the photoreductive debromination of aromatic halides with a robust character toward the stability during operation ...
José Luis Nova‐Fernández, Daniel González‐Muñoz, Gustavo Pascual‐Coca, Mattia Cattelan, Stefano Agnoli, Raúl Pérez‐Ruiz, José Alemán, Silvia Cabrera, Matías Blanco   +8 more
wiley   +1 more source

Visible‐Light‐Driven Cyclizations

Advanced Synthesis &Catalysis, Volume 366, Issue 4, Page 635-697, February 20, 2024.
Abstract In recent years, the interest to develop cyclizations promoted by visible light has been gaining a lot of attention due to its sustainability aspect. In this review, we summarize the most important advances in this period by describing the methods used to generate different ring sizes, while focusing on the mechanistic details of these ...
Emilia Oueis, Mirella Elkadi, Ramon Rios
wiley   +1 more source

Intramolecular Povarov Reactions for the Synthesis of Chromenopyridine fused 2-Pyridone Polyheterocycles Binding to α-Synuclein and Amyloid-β fibrils

, 2020
A BF3×OEt2 catalyzed intramolecular Povarov reaction was used to synthesize a library of 15 chromenopyridine fused thiazolino-2-pyridone peptidomimetics.
Gharibyan, Anna, Gharibyan, Anna,, Tyagi, Mohit,, Tyagi, Mohit, Singh, Pardeep,, Ådén, Jörgen,, Ådén, Jörgen, Olofsson, Anders, Singh, Pardeep, Adolfsson, Dan E., Deuschmann, Adrian,, Olofsson, Anders,, Deuschmann, Adrian, Adolfsson, Dan E.,, Almqvist, Fredrik, Jayaweera, Sanduni Wasana,, Lindgren, Anders E. G.,, Jayaweera, Sanduni Wasana, Lindgren, Anders E. G., Almqvist, Fredrik,   +19 more
core   +1 more source

Polyheterocyclic Systems Incorporating Pyrazole, Thiophene, Thiazole, and Thiadiazole Moieties.

ChemInform, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
Kamal M. Dawood, Eman A. Ragab, Ahmad M. Farag   +2 more
openaire   +1 more source

Ligand-controlled product selectivity in palladium-catalyzed domino post-Ugi construction of (spiro)polyheterocycles

, 2016
A novel diversity-oriented access to (spiro)polyheterocycles possessing two adjacent quaternary carbon stereocenters is described. By combining an Ugi 4-CR with Pd-catalysis, the possible mode of cyclization is controlled by the appropriate choice of ...
Sharma, Upendra Kumar, Li, Zhenghua, Van der Eycken, Erik, Jacobs, Jeroen, Van Meervelt, Luc, Sharma, Nandini   +5 more
core   +1 more source

Recent advances on cyclization reaction of indole-tethered alkenes for the construction of polyheterocycles

Indole-containing polyheterocycles belong to an extremely important class of organic compounds, and the related skeletons are found in many natural products and bioactive molecules.
Semghouli, Anas, Han, Jianlin, Haibo, Mei, Kiss, Loránd   +3 more
core  

Visualization of Biogenic Amines and In Vivo Ratiometric Mapping of Intestinal pH by AIE‐Active Polyheterocycles Synthesized by Metal‐Free Multicomponent Polymerizations

, 2019
Acid-base homeostasis is crucial for normal physiology, metabolism, and functions of living organisms. Thus, the development of effective techniques to monitor it either in vitro or in vivo is in great demand.
Ting Han, Wen‐Xiong Wang, Ben Zhong Tang, Liu, Xiaolin, Wang, Wen Xiong, Han, Ting, Lam, Jacky W.Y., Yan, Neng, Liu, Junkai, Jacky W. Y. Lam, Yubing Hu, Junkai Liu, Xiaolin Liu, Neng Yan, Hu, Yubing, Tang, Ben Zhong   +15 more
core   +1 more source