Results 171 to 180 of about 83,038 (344)

Diastereoselective synthesis of substituted macrocyclic complexes from achiral starting materials [PDF]

, 2023
Karley Maier, Lauren N. Rust, Charlene Kupara, Mark Woods   +3 more
openalex   +1 more source

Diastereoselective Synthesis of 2,6-Disubstituted 3-Hydroxypiperidine, 2-(a-Hydroxyalkyl)-3-hydroxypiperidine and 2-(a-Hydroxyalkyl)-3-hydroxypyrrolidine Derivatives

, 1990
Shinzo Kano, Yoko Yuasa, Naoki Mochizuki, Shiroshi Shibuya   +3 more
openalex   +1 more source

Bioinspired Synthesis of Twin abeo‐Steroids Bufogargarizins A and B via a Divergent Intramolecular Aldol Addition Reaction

Angewandte Chemie, Volume 138, Issue 2, 9 January 2026.
Twin natural products. This manuscript describes a concise biomimetic synthesis of twin abeo‐steroids bufogargarizins A and B with an unusual [7.5.6.5] and [5.7.6.5] skeletons in 19 steps (LLS). The described synthetic approach features the application of a bioinspired regiodivergent intramolecular aldol addition reaction and a selective singlet oxygen‐
Zoey J. Surma, Volodymyr Hiiuk, Eugene Zviagin, Yaxin Ouyang, Alex Chacko, Fengrui Qu, Paul M. Zimmerman, Pavel Nagorny   +7 more
wiley   +2 more sources

Diastereoselective Synthesis of trans-4,5-Disubstituted Oxazolidin-2-ones and Vicinal Amino Alcohols through Alkylation of N-Acyliminium Ion Intermediates

, 1987
Shinzo Kano, Yoko Yuasa, Shiroshi Shibuya   +2 more
openalex   +1 more source

Chelation and Stereodirecting Group Effects on Regio- and Diastereoselective Samarium(II)-Water Allylic Benzoate Reductions [PDF]

, 2020
Gregory W. O’Neil, Trevor Stockdale, Michael Leitch   +2 more
openalex   +1 more source

Fluoride‐Transfer Asymmetric Allylic Alkylation Enables Regiodivergent, Stereoselective Cross‐Electrophile Coupling

Angewandte Chemie, Volume 138, Issue 2, 9 January 2026.
We report a fluoride‐transfer asymmetric allylic alkylation (AAA) in which all reagent atoms, including the leaving group, are incorporated into the products. This atom‐efficient AAA protocol enables the cross‐electrophile coupling of allyl fluorides and gem‐difluoroalkenes, providing a catalyst‐controlled, regiodivergent, and stereoselective access to
Jordi Duran, Vyali Georgian Moldoveanu, Claudia Barroso, Geraldo Augusto Pereira, Bart Limburg, Xavier Companyó   +5 more
wiley   +2 more sources

Diastereoselectivity in Photochemistry

International audience ; Diastereoselective photochemical reactions play an important role for asymmetric synthesis, for example for the synthesis of natural or biologically active compounds. Chirality is either induced by a chiral auxiliary or by a chiral centers already present in the substrates.
openaire   +2 more sources

Bifunctional Aziridines from Photochemically Generated FSO2NH2 for SuFEx Diversification of Alkenes

Angewandte Chemie, Volume 138, Issue 2, 9 January 2026.
Photochemically generated FSO2NH2 serves as a safe, practical nitrene precursor for Rh‐catalyzed aziridination of alkenes, granting access to previously inaccessible fluorosulfonyl aziridines. These bifunctional electrophiles merge aziridine ring strain with SuFEx reactivity to provide a modular platform toward aliphatic sulfamoyl fluoride derivatives ...
Avinash Choudhury, Varun Prabhakar, Zakary B. Newman, Quentin Michaudel   +3 more
wiley   +2 more sources

Harnessing Cooperative Energy Transfer and Hydrogen Atom Transfer for Direct Nitrogenations of Non‐Activated Alkanes

Angewandte Chemie International Edition, Volume 65, Issue 3, 16 January 2026.
Cooperative EnT & HAT: New solution for direct C─N coupling of unactivated alkanes. Metal‐free photocatalytic nitrogenation. Use of unactivated alkanes. Original reaction pathway. Abstract While important progress has been achieved recently on direct functionalization of alkanes via photocatalytic methods, direct amination of aliphatic compounds ...
Sai Teja Kolla, Àlex Díaz‐Jiménez, Sven Trienes, Ignacio Funes‐Ardoiz, Joanna Wencel‐Delord   +4 more
wiley   +1 more source

Diastereoselective synthesis of novel (S)-lactic pyrazoline derivatives and investigation of antibacterial capabilities. [PDF]

Sci Rep
Gholami M, Imanzadeh G, Kabiri Esfahani F, Karami-Zarandi M, Shamkhali AN.   +4 more
europepmc   +1 more source