Results 41 to 50 of about 1,637,730 (127)

The synthesis and properties of some well-defined fluorinated polymers [PDF]

, 1996
This thesis describes studies directed to the ring opening metathesis polymerisation (ROMP) of some fluorinated compounds using a range of well-defined initiators.
Towns, Richard Mark
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Retro‐Hetero‐Michael Addition Strategies in Organic Synthesis

European Journal of Organic Chemistry, Volume 29, Issue 32, 24 August 2026.
In this review, synthetic approaches to carbo‐ and heterocyclic compounds, including natural products, published in the last 15 years (2011–2025) which have either relied upon or included a retro‐hetero‐Michael addition step at any stage are discussed.
Dina Scarpi, Ernesto G. Occhiato
wiley   +1 more source

Stereoselective Higher‐Order [10+4]‐ and [10+6] Cycloadditions Between Two Highly Unsaturated and Ambiphilic π‐Addends

Chemistry – A European Journal, Volume 32, Issue 31, 18 August 2026.
Aminocatalytically generated isobenzofulvenes and 3‐oxidopyridinium betaines act as ambiphilic reaction partners in orbital‐symmetry‐allowed [10+4] cycloadditions or formally symmetry‐forbidden concerted thermal [10+6] cycloadditions. The reaction furnishes three cycloadducts: one [10+4] cycloadduct and two regioisomeric [10+6] cycloadducts.
Jonas Faghtmann, Anne Kristensen, Fabien Fritz, Signe Sofie Pladsbjerg Andresen, Anne Rask Østergaard, Johannes Nygaard Lamhauge, K. N. Houk, Karl Anker Jørgensen   +7 more
wiley   +1 more source

Shape‐directed formation of T8/T6 Zn–siloxane clusters and their deep‐UV shielding properties

Bulletin of the Korean Chemical Society, Volume 47, Issue 8, Page 932-940, August 2026.
The shape and conformational characteristics of silane substituents direct the assembly of Zn–siloxane clusters into conventional T8 or rare T6 siloxane frameworks. Non‐planar cyclic substituents selectively promote T6 formation through steric effects, while the resulting clusters exhibit deep‐ultraviolet absorption and can be processed into ...
Dopil Kim, Min Jeong Park, Purna Chandra Rao, Younghu Son, Sung Hwa Jhung, Minyoung Yoon   +5 more
wiley   +1 more source

Synthesis, in Vitro Pharmacology, and Molecular Modeling of Very Potent Tacrine−Huperzine A Hybrids as Acetylcholinesterase Inhibitors of Potential Interest for the Treatment of Alzheimer's Disease [PDF]

, 1999
Eleven new 12-amino-6,7,10,11-tetrahydro-7,11-methanocycloocta[b]quinoline derivatives [tacrine (THA)−huperzine A hybrids, rac-21−31] have been synthesized as racemic mixtures and tested as acetylcholinesterase (AChE) inhibitors.
Badia, Albert, Vivas, Nuria María, Orozco, Modesto, Morral-Cardoner, Jordi, Barril, Xavier, Görbig, Diana Marina, Baños, Josep Eladi, Camps, Pelayo, Muñoz-Torrero, Diego, El Achab, Rachid, Luque, Francisco Javier, Xavier Barril, Francisco Javier Luque, Nuria María Vivas, Pelayo Camps, Jordi Morral, Modesto Orozco, Diana Marina Görbig, Albert Badia, Rachid El Achab, Josep Eladi Baños, Diego Muñoz-Torrero   +21 more
core   +1 more source

Synthesis of Various Bridged Ring Systems via Rhodium-Catalyzed Bridged (3+2) Cycloadditions

, 2021
Here, we describe the rhodium-catalyzed bridged (3+2) cycloaddition cascade reactions of N-sulfonyl-1,2,3-triazoles, which allowed the efficient diastereoselective construction of various functionalized and synthetically challenging bridged ring systems.
Yu-Tao He, Chuang-Chuang Li, Bao-Long Hou, Bao-Long Hou (11473846), Yu-Tao He (1433743), Chuang-Chuang Li (1264557), Li-Xuan Li, Xiaohong Lin, Li-Xuan Li (467717), Xiaohong Lin (5767226)   +9 more
core   +1 more source

Silver-Promoted Reactions of Bicyclo[3.2.1]octadiene Derivatives

, 2016
Highly substituted bicyclo[3.2.1]octadiene building blocks are easily prepared from tetrachloro- or tetrabromocyclopropene through reaction with cyclic dienes.
Merle A. Battiste (2509483), Ravi S. Orugunty (2726407), Khalil A. Abboud (1274355), Dennis L. Wright (184896)   +3 more
core   +1 more source

Synthesis of amino- and hydroxyl-substituted bridged bicyclic compounds and their application in asymmetric catalysis

, 2008
In this work, hydroxyl- and amino-substituted bridged bicyclic compounds based on bicyclo[2.2.1]heptane, bicyclo[2.2.2]octane and bicyclo[3.3.1]nonane were synthesized and investigated for use in asymmetric catalysis.
Olsson, Cecilia
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A simple approach to the construction of bicyclo[5.2.1] and [5.3.1] ring systems from bicyclo[2.2.1]Heptane precursors

, 1990
A simple two step sequence for the construction of highly functionalised bicyclo[5.2.1]decane and its transformation to bicyclo[5.3.1]undecane is described for entry into bridged ring ...
Bhattacharya, Atashi, Ghosh, Subrata, Saha, Goutam, Roy, Supti Saha, Atashi Bhattacharya, Subrata Ghosh, Supti Saha Roy, Goutam Saha   +7 more
core   +1 more source

Synthesis of Spiro Compounds Based on Bicyclo[3.3.1]nonane

Organic compounds with bicyclic structure are important because of their stereochemical features and biological activity. The studies of synthesis of spiro compounds bearing bicyclo[3.3.1]nonane framework were based on bicyclo[3.3.1]nonan-2,6-dione and ...
Zilinskas, Albinas, Urbelis, Gintaras, Gedrimaite, Olga, Podgursky, Andrey, Labanauskas, Linas, Rozenbergas, Ricardas, Visniakova, Sigita   +6 more
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