Results 1 to 10 of about 22,861 (258)

A Regioselective Approach to Accessing Trisubstituted Pyrrolo[2,3-d][1,2,3]triazoles via an Orthogonal Protection Strategy [PDF]

open access: yesMolecules
The first access to N-2, N-4-disubstituted pyrrolo[2,3-d][1,2,3]triazoles is reported herein. The series was generated using an orthogonal protecting group strategy from N-1, N-4-disubtituted pyrrolo[2,3-d][1,2,3]triazoles. N-Arylation by Ullman–Goldberg
Kévin Brugemann   +4 more
doaj   +2 more sources

Direct Arylation in the Presence of Palladium Pincer Complexes

open access: yesMolecules, 2021
Direct arylation is an atom-economical alternative to more established procedures such as Stille, Suzuki or Negishi arylation reactions. In comparison with other palladium sources and ligands, the use of palladium pincer complexes as catalysts or pre ...
Garazi Urgoitia   +4 more
doaj   +1 more source

Challenging Atroposelective C–H Arylation

open access: yesSynOpen, 2020
Atropisomeric molecules are privileged scaffolds, not only as ligands for asymmetric synthesis, but also as biologically active products and advanced materials.
Joanna Wencel-Delord   +1 more
doaj   +1 more source

Recent Progress Concerning the N-Arylation of Indoles

open access: yesMolecules, 2021
This review summarizes the current state-of-the-art procedures in terms of the preparation of N-arylindoles. After a short introduction, the transition-metal-free procedures available for the N-arylation of indoles are briefly discussed. Then, the nickel-
Petr Oeser   +3 more
doaj   +1 more source

Metal‐Free and Open‐Air Arylation Reactions of Diaryliodonium Salts for DNA‐Encoded Library Synthesis

open access: yesAdvanced Science, 2022
A successful DNA‐encoded library (DEL) will consist of diverse skeletons and cover chemical space as comprehensive as possible to fully realize its potential in drug discovery and chemical biology.
Hongtao Xu   +14 more
doaj   +1 more source

Room-temperature Pd/Ag direct arylation enabled by a radical pathway

open access: yesBeilstein Journal of Organic Chemistry, 2020
Direct arylation is an appealing method for preparing π-conjugated materials, avoiding the prefunctionalization required for traditional cross-coupling methods. A major effort in organic electronic materials development is improving the environmental and
Amy L. Mayhugh, Christine K. Luscombe
doaj   +1 more source

Copper-catalyzed remote C–H arylation of polycyclic aromatic hydrocarbons (PAHs)

open access: yesBeilstein Journal of Organic Chemistry, 2020
The regioselective C–H arylation of substituted polycyclic aromatic hydrocarbons (PAHs) is a desired but challenging task. A copper-catalyzed C7–H arylation of 1-naphthamides has been developed by using aryliodonium salts as arylating reagents.
Anping Luo   +5 more
doaj   +1 more source

Copper-catalyzed N-arylation of amines with aryliodonium ylides in water

open access: yesBeilstein Journal of Organic Chemistry, 2023
Copper sulfate catalyzed an efficient, inexpensive, and environment-friendly protocol that has been developed for N-arylation of amines with 1,3-cyclohexadione-derived aryliodonium ylides in water as a green solvent.
Kasturi U. Nabar   +2 more
doaj   +1 more source

Arylation Reactions in the Synthesis of Biologically Important 2,5-Diaryl-1,3,4-Oxadiazoles

open access: yesApplied Sciences, 2022
Apart from carbon atoms, some cyclic molecules contain other elements and play an extraordinary role in human life. Among these systems, 1,3,4-oxadiazole derivatives deserve special attention due to their biological properties such as antibacterial ...
Monika Olesiejuk, Agnieszka Kudelko
doaj   +1 more source

Highly Regioselective Direct C-H Arylation: Facile Construction of Symmetrical Dithienophthalimide-Based π-Conjugated Molecules for Optoelectronics

open access: yesResearch, 2020
Controllable direct C-H arylation with high regioselectivity is highly desirable yet remains a formidable challenge. Herein, a facile regioselective direct C-H arylation is developed for efficient construction of a variety of symmetrical ...
Xiang-Chun Li   +8 more
doaj   +1 more source

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