Results 141 to 150 of about 55,078 (177)

Acid-Responsive Dissociation of Ferrocene Compounds: Diels-Alder Diene Equivalents for Selective Preparation of [60]Fullerene-Fused Bicyclo[2.2.1]hept-5-enes.

Journal of Organic Chemistry, 2022
Herein, an unprecedented transformation of [60]fullerene with ferrocene compounds giving access to various [60]fullerene-fused bicyclo[2.2.1]hept-5-enes is presented. In the presence of an acid, ferrocene compounds undergo an unusual dissociation process
Tongxin Liu   +6 more
semanticscholar   +1 more source

N-Iodosuccinimide-Mediated Dimerization of 2-Alkynylnaphthols: A Highly Diastereoselective Construction of Bridged Polycyclic Compounds via Vinylidene ortho-Quinone Methide Intermediate.

Organic Letters, 2020
An unprecedented highly diastereoselective dimerization of 2-alkynylnaphthols is presented to furnish bridged polycyclic compounds containing a bicyclo[3.2.1]octane moiety with good to excellent yields.
Yun-Xuan Tan   +8 more
semanticscholar   +1 more source

Bicyclo[m.n.k]alkane Building Blocks as Promising Benzene and Cycloalkane Isosteres: Multigram Synthesis, Physicochemical and Structural Characterization.

Chemistry, 2023
Electrophilic double bond functionalization - intramolecular enolate alkylation sequence was used to obtain a series of bridged and fused bicyclo[m.n.k]alkane derivatives (i.e., bicyclo[4.1.1]octanes, bicyclo[2.2.1]heptanes, bicyclo[3.2.1]octanes ...
Volodymyr V. Semeno   +10 more
semanticscholar   +1 more source

Bicyclo[2.1.1]hexanes by Visible Light-Driven Intramolecular Crossed [2 + 2] Photocycloadditions.

Organic Letters, 2022
Bicyclo[2.2.1]hexanes have become increasingly popular building blocks in medicinal chemistry as bridged scaffolds that provide unexplored chemical space.
T. Rigotti, T. Bach
semanticscholar   +1 more source

Imidazole-catalyzed construction of bridged bicyclo [3.3.1] ketals via formal [3 + 3]-cycloaddition of naphthols and 2-hydroxyl chromene derivatives.

Organic and biomolecular chemistry
Bridged bicyclo[3.3.1]nonanes having the O,O-ketal subunit are widely found in medicinal compounds. While several acid-catalyzed approaches have been reported for the construction of ketals, this study discloses an imidazole-catalyzed modular ...
Asha Budakoti   +4 more
semanticscholar   +1 more source

Diverse Synthesis of Arene-Fused [n.1.1]-Bridged Molecules via Catalytic Cycloaddition and Rearrangement Reactions.

Angewandte Chemie
Although great advancement has been made in synthesis of 3D bridged bicyclic[n.1.1]-bioisosteres, facile construction of 2D/3D merged molecules incorporating bridged rings, as novel chemical space in drug discovery, remains a significant challenge ...
Tao Yu   +6 more
semanticscholar   +1 more source

Strategies for the Construction of Benzobicyclo[3.2.1]octane in Natural Product Synthesis.

Chemistry
Benzobicyclo[3.2.1]octane is a cage-like unique motif containing a bicyclo[3.2.1]octane structure fused with at least one benzene ring. It is found in various natural products that exhibit structural complexities and important biological activities.
Jia-Xuan Liu   +5 more
semanticscholar   +1 more source

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