Palladium-catalyzed meta-C H bond iodination of arenes with I2
Sign Up to like & getrecommendations! Published in 2020 at "Chinese Chemical Letters"
DOI: 10.1016/j.cclet.2019.09.057
Abstract: Abstract Palladium-catalyzed highly meta-selective C H iodination of phenylacetic acid, benzylphosphonate and benzylsulfonate scaffolds with molecular I2 is developed using a pyridine-type template. The practical ester linkages enable the directing template easily installed and readily… read more here.
Keywords: iodination; meta bond; palladium catalyzed; catalyzed meta ... See more keywords
Palladium-Catalyzed meta-C-H Olefination of Arene-Tethered Diols Directed by Well-Designed Pyrimidine-Based Group.
Sign Up to like & getrecommendations! Published in 2019 at "Organic letters"
DOI: 10.1021/acs.orglett.9b00433
Abstract: The palladium-catalyzed meta-olefination of arene-tethered diols attached to a well-designed pyrimidine moiety is presented. Applications of the protocol are illustrated by the synthesis of various diol-based natural products, such as coumarins, phenylpropanoids, stilbenes, and chalcones.… read more here.
Keywords: olefination; palladium catalyzed; arene tethered; meta olefination ... See more keywords
Palladium Catalyzed meta-C-H Functionalization of Masked Aromatic Aldehydes.
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DOI: 10.1021/acscatal.8b01599
Abstract: Palladium catalyzed meta-C-H functionalization enabled by transient mediators has the potential to extend the utility of directed ortho-C-H functionalization to remote positions. However, there have been no reports of palladium catalyzed meta-C-H functionalization of aromatic… read more here.
Keywords: functionalization masked; meta functionalization; palladium catalyzed; masked aromatic ... See more keywords
Rh(III)-Catalyzed meta-C-H Alkenylation with Alkynes.
Sign Up to like & getrecommendations! Published in 2019 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.8b11038
Abstract: Rh(III)-catalyzed meta-C-H functionalization reactions are still rare. Herein, we report the first example of Rh(III)-catalyzed meta-C-H alkenylation with disubstituted alkynes directed by a U-shaped nitrile template. Exclusive regio-selectivity has been achieved using unsymmetrical aryl and… read more here.
Keywords: alkenylation alkynes; catalyzed meta; meta alkenylation; iii catalyzed ... See more keywords