Results 151 to 160 of about 65,696 (224)

Synthesis of Large‐ and Medium‐Sized Heterobiaryl Atropisomeric Rings and Atropopeptides by Catalytic Intramolecular SNAr

Angewandte Chemie, EarlyView.
Catalytic, intramolecular N‐heterocycle arylation by nucleophilic aromatic substitution (SNAr) is now available for synthesis of highly strained macrocycles and medium‐sized heterobiaryl atropisomeric rings, including atropopeptides. Key to the approach is the ability to generate a strong base catalytically, taking advantage of base‐embedding ...
Alireza Abbasi Kejani, Paritosh Dey, Nicholas H. Stillman, Daniel M. Andrade, Michal Šimek, Martin Dračínský, Daniel Bím, Paulo H. S. Paioti   +7 more
wiley   +2 more sources

Catalytic Asymmetric Diastereodivergent Synthesis of 2‑Alkenylindoles Bearing both Axial and Central Chirality

Precision Chemistry
Shuang Yang, Jia-Bo Huang, Da-Hua Wang, Ning-Yi Wang, Yu-Yu Chen, Xin-Yan Ke, Hao Chen, Shao-Fei Ni, Yu-Chen Zhang, Feng Shi   +9 more
doaj   +1 more source

Tunable Sulfenylnitrenes Enable Scaffold Hopping of Furans Into N-Heterocycles. [PDF]

Angew Chem Int Ed Engl
Kafle P, Kharel P, Mukherjee R, Yasuda S, Herndon D, Fox RC, Perez DL, Akhmedov NG, Sharma I.   +8 more
europepmc   +1 more source

Influence of Substitution on the Interplay of Photochemical Switching and Phase Transitions in Azobenzene‐Based Molecular Materials

Angewandte Chemie, EarlyView.
This study investigates the influence of several substituents at different positions on photochemical and thermal properties of azobenzene‐based materials to provide valuable structure‐property relationships for the specific design of azobenzene‐based materials for future energy storage and phase change materials. ABSTRACT Understanding and translating
Conrad Averdunk, Hermann A. Wegner
wiley   +2 more sources

Development of a New N-Amination Reagent for Direct Electrophilic Amination of Energetic Nitrogen-Rich Heterocycles. [PDF]

Chem Asian J
Jin Y, Zeng G, Zhang Y, Xue Q, Bi F, Lu H.   +5 more
europepmc   +1 more source

Cobalt‐Catalyzed [2σ+2π] Cycloaddition via Site‐Selective Capture of Bicyclobutane Diradical

Angewandte Chemie, EarlyView.
We report a Co(II)‐catalyzed strategy that combines thermal activation of bicyclo[1.1.0]butane (BCBs) with site‐selective radical capture to furnish head‐to‐head fused bicyclo[2.1.1]hexanes via [2σ+2π] cycloaddition with indoles. Detailed mechanistic studies (31P NMR, EPR, CV, and DFT) support the catalytic pathway, while phosphine‐oxide trapping and X‐
Tanmayee Nanda, Alexander Umanzor, Julia Gartzke, Jeremy T. Maddigan‐Wyatt, Philipp Thielert, Stefan Weber, Sabine Richert, Shuming Chen, Daniel B. Werz   +8 more
wiley   +2 more sources

Beyond a solvent: HFIP as a game-changing medium in heterocyclic ring construction. [PDF]

Beilstein J Org Chem
Alakonda LM, Varala R, Seema V, Alam MM.
europepmc   +1 more source

Accessing Sterically Congested Benzannulated Cyclic Aryl Ethers via Photoredox Decarboxylative Giese-Type C2-C3 Bond Formation. [PDF]

J Org Chem
Topalović I, Lange M, Vilotijević I.
europepmc   +1 more source

Iridium-Catalyzed Ionic Hydrogenation of Multi-Aza Heterocycles. [PDF]

Angew Chem Int Ed Engl
Despois A, Cramer N.
europepmc   +1 more source

Metal-Free Electrochemical Construction of Oxygen Heterocycles. [PDF]

Acc Chem Res
Valdés H, Batanero B.
europepmc   +1 more source