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- Title
First‐Row Transition Metal‐Catalyzed Single Hydroelementation of N‐Heteroarenes.
- Authors
Park, Sehoon
- Abstract
Catalytic partial reduction of N‐heteroarenes with H2 or H[E] (E=Si, B‐based) has been a useful and general method for synthesis of a broad range of dihydropyridines (DHP) and dihydroquinolines (DHQ). In recent seven years, one of the most notable advances in this context is being able to utilize earth‐abundant and inexpensive first‐row transition metal‐based catalytic systems. These catalytic procedures are generally considered more environmentally benign and sustainable when compared to conventional catalytic systems relying on precious metals. This Review describes 20 molecular catalytic systems based on first‐row transition metals for selective single hydroelementation of pyridines and quinolines with H2 surrogate, hydrosilanes, and hydroboranes providing 1,2‐ or 1,4‐dihydropyridines and ‐dihydroquinolines. The observed reaction profiles such as scope and activity are briefly presented, while the proposed working modes over a series of elemental steps – H−[E] bond cleavage, hydride (H−) or hydrogen atom (H⋅) transfer, and product release, are discussed in detail on the basis of experimental and/or computational mechanistic observations and insights.
- Subjects
PRECIOUS metals; SCISSION (Chemistry); CATALYTIC reduction; DIHYDROPYRIDINE; QUINOLINE; HYDROGEN atom; TRANSITION metals; TRANSITION metal complexes
- Publication
ChemCatChem, 2024, Vol 16, Issue 5, p1
- ISSN
1867-3880
- Publication type
Article
- DOI
10.1002/cctc.202301422