Results 11 to 20 of about 1,676 (183)
Water, Alcohols, Amines, and Amides as Formal Hydrogen-Atom-Transfer Reagents Through Activation With Redox-Active Lewis Acids. [PDF]
Angew Chem Int Ed EnglProtic molecules containing strong O─H or N─H bonds typically resist hydrogen‐atom abstraction because of the high reactivity of the resulting heteroatom‐centered radicals. However, association of the protic molecules with redox‐active Lewis acids can provide powerful hydrogen‐atom donors or proton‐coupled‐electron‐transfer reagents.
Vojáčková P, Studer A.
europepmc +3 more sources
, 2007 Radical synthesis of phenanthridines and dechalcogenative allylic rearrangements for thiol ...
Venkataramanan. Krishnamurthy (7987046)
core +6 more sources
o-Nitrobenzyl oxime ethers enable photo-induced cyclization reac-tion to provide phenanthridines under aqueous conditions [PDF]
, 2022 In this paper, we describe a novel N–O photolysis of o-nitrobenzyl oxime ethers that enables the synthesis of phenanthridines via intramolecular cyclization reactions. Without the use of additional photocatalysts or photosensitizers, the process proceeds
Fumi, Nagatsugi +3 more
core +2 more sources
Photocatalyzed syntheses of phenanthrenes and their aza-analogues. A review
Beilstein Journal of Organic Chemistry, 2020 Phenanthrenes and their aza-analogues have important applications in materials science and in medicine. Aim of this review is to collect recent reports describing their synthesis, which make use of radical cyclizations promoted by a visible light ...
Alessandra Del Tito +4 more
doaj +1 more source
Isometamidium chloride and homidium chloride fail to cure mice infected with Ethiopian Trypanosoma evansi type A and B. [PDF]
PLoS Neglected Tropical Diseases, 2018 BACKGROUND:Trypanosoma evansi is mechanically transmitted by biting flies and affects camels, equines, and other domestic and wild animals in which it causes a disease called surra.
Gebrekrustos Mekonnen +7 more
doaj +1 more source
, 2022 A visible light-promoted radical-mediated ring-opening/cyclization of vinyl benzotriazoles has been developed. The method provides an efficient and practical approach to synthesize functionalized phenanthridines from vinyl benzotriazoles with alkyl ...
Jingjing Zhao (129177) +3 more
core +1 more source
Convergent Synthesis of 6-Substituted Phenanthridines via Anionic Ring Closure
, 2016 The addition of organometallic derivatives to the cyano group of 2-(2-fluorophenyl)benzonitrile followed by intramolecular nucleophilic substitution produces 6-substituted phenanthridines.
Jesper L. Kristensen (141358) +3 more
core +2 more sources
From Isocyanides to Iminonitriles via Silver-mediated Sequential Insertion of C(sp3)–H Bond
iScience, 2019 Summary: Heterocycles are prevalent constituents of many marketing drugs and biologically active molecules to meet modern medical challenges. Isocyanide insertion into C(sp3)–H bonds is challenging especially for the construction of quaternary carbon ...
Huiwen Chi +7 more
doaj +1 more source
Guiding Photochemical Process Intensification Through Kinetic Diagnostics
Angewandte Chemie, Volume 138, Issue 42, 12 October 2026.Photochemical methodologies are typically optimized for yield, yet yield alone provides limited insight into scalability. We show that simple kinetic diagnostics identify the dominant process limitations and guide targeted engineering interventions.
Jasper H. A. Schuurmans +2 more
wiley +2 more sources