Strategic evolution in transition metal-catalyzed directed C–H bond activation and future directions

S Rej, A Das, N Chatani - Coordination Chemistry Reviews, 2021 - Elsevier
In the field of C–H bond functionalization chemistry, directed C–H bond activation strategies
are highly appreciated due to the high efficiency and selectivity of such reactions towards a …

Reactivity of ynamides in catalytic intermolecular annulations

YC Hu, Y Zhao, B Wan, QA Chen - Chemical Society Reviews, 2021 - pubs.rsc.org
Ynamides are unique alkynes with a carbon–carbon triple bond directly attached to the
nitrogen atom bearing an electron-withdrawing group. The alkyne is strongly polarized by …

Transition-metal-catalyzed C–H allylation reactions

S Dutta, T Bhattacharya, DB Werz, D Maiti - Chem, 2021 - cell.com
Allylation reactions are one of the most fundamental and productive C− C bond-forming
transformations, as the allyl group can provide a useful handle for further manipulation …

Zinc‐Catalyzed Asymmetric Formal [4+3] Annulation of Isoxazoles with Enynol Ethers by 6π Electrocyclization: Stereoselective Access to 2H‐Azepines

XQ Zhu, ZS Wang, BS Hou, HW Zhang… - Angewandte Chemie …, 2020 - Wiley Online Library
Abstract 6π electrocyclization has attracted interest in organic synthesis because of its high
stereospecificity and atom economy in the construction of versatile 5–7‐membered cycles …

Highly Stereoselective Synthesis of Fused Tetrahydropyrans via Lewis-Acid-Promoted Double C(sp3)–H Bond Functionalization

K Yokoo, D Sakai, K Mori - Organic Letters, 2020 - ACS Publications
We have achieved a sequential hydride-shift-triggered double C (sp3)–H bond
functionalization at a position adjacent to an oxygen atom and a benzylic/aliphatic position …

Benign catalysis with zinc: atom-economical and divergent synthesis of nitrogen heterocycles by formal [3+ 2] annulation of isoxazoles with ynol ethers

XQ Zhu, H Yuan, Q Sun, B Zhou, XQ Han, ZX Zhang… - Green …, 2018 - pubs.rsc.org
Herein, we disclose an efficient zinc-catalyzed formal [3+ 2] annulation of isoxazoles with
ynol ethers under exceptionally mild reaction conditions, leading to the atom-economical …

Synthesis of Benzosiloles by Intramolecular anti-Hydroarylation via ortho-C–H Activation of Aryloxyethynyl Silanes

Y Minami, Y Noguchi, T Hiyama - Journal of the American …, 2017 - ACS Publications
Straightforward synthesis of benzosiloles was achieved by the invention of Pd/acid-
catalyzed intramolecular anti-hydroarylation of aryloxyethynyl (aryl) silanes via ortho-C–H …

Chiral Brønsted acid-catalyzed asymmetric dearomative spirocyclization of alkynyl thioethers

XY Fan, JC Li, JJ Zhou, B Zhou, LW Ye - Green Chemistry, 2023 - pubs.rsc.org
The regioselective transformation of alkynes represents a highly efficient bond-forming
strategy in organic synthesis. However, the enantiocontrol in the conversion of alkynes …

Collaborative Interaction of Carbon–Carbon Unsaturated Bond Groups with Transition-metal Catalysts for C–H Bond Functionalization

Y Minami, T Hiyama - Chemistry Letters, 2018 - academic.oup.com
Alkynes, alkenes, and thiophenes are found to behave as a directing group for C–H bond
activation by a transition-metal catalyst. This collaborative interaction led to the discovery of …

Hydroarylation of 2‐Aryloxybut‐1‐en‐3‐ynes via Pd/Acid‐Catalyzed C− H Bond Activation: A Concise Synthesis of 2, 3‐Bismethylene‐2, 3‐dihydrobenzofurans

Y Minami, M Sakai, T Sakamaki… - Chemistry–An Asian …, 2017 - Wiley Online Library
An intramolecular exo‐hydroarylation of 2‐aryloxy‐1, 4‐disilylbut‐1‐en‐3‐ynes via ortho‐
C− H bond activation under palladium (0) and acid catalysis was found to give 2, 3‐bis …