Ruthenium-Catalyzed 1,3-Aryl Redox Isomerization of Allylic Alcohols.
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DOI: 10.1021/acs.orglett.2c03410
Abstract: The isomerization of allylic alcohols to the corresponding carbonyl compounds is a well-established reaction in organic synthesis. However, 1,3-carbon migration is a quite challenging field, and thus transformation has remained elusive until now. Herein, we… read more here.
Keywords: ruthenium catalyzed; isomerization; aryl redox; allylic alcohols ... See more keywords
Rhodium-Catalyzed 1,4-Aryl Rearrangement of Sulfur Ylide for the Synthesis of 2-Pyridyl Thioethers.
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DOI: 10.1021/acs.orglett.3c00068
Abstract: We report a novel rhodium-catalyzed rearrangement involving N-substituted 2-thiopyridones and diazoesters. This reaction proceeds through the rhodium-catalyzed formation of sulfur ylides, followed by a direct C-N bond cleavage to achieve N-to-C 1,4-pyridyl migration. The protocol… read more here.
Keywords: sulfur ylide; pyridyl; sulfur; rhodium catalyzed ... See more keywords
Gold-Catalyzed Aryl-Alkenylation of Alkenes.
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DOI: 10.1021/acs.orglett.3c01044
Abstract: Herein, we report the gold-catalyzed aryl-alkenylation of unactivated alkenes with alkenyl iodides and bromides employing ligand-enabled gold redox catalysis. The present methodology followed the π-activation pathway rather than the migratory insertion pathway, which is predominant… read more here.
Keywords: gold catalyzed; aryl alkenylation; catalyzed aryl; alkenylation alkenes ... See more keywords
Nickel-catalyzed 1,4-aryl rearrangement of aryl N-benzylimidates via C-O and C-H bond cleavage.
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DOI: 10.1039/d2cc02355e
Abstract: We report herein that nickel-catalyzed reaction of aryl imidates bearing an N-benzyl group results in 1,4-migration of an O-aryl group via the cleavage of C-O and C-H bonds. This protocol allows for the benzylic C-H… read more here.
Keywords: cleavage; aryl; nickel catalyzed; catalyzed aryl ... See more keywords
Rhodium-Catalyzed Aryl Migratory/Decarbonylation of Diaryl Ketones via the Activation of Unstrained C–C Bonds
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DOI: 10.1055/a-1561-8299
Abstract: A Rh-catalyzed aryl migratory/decarbonylation of unstrained ketones has been developed. This viable transformation provides a complementary decarbonylative method using diaryl ketones to afford a variety of alkenylated heterocycles in good yields with moderate to good… read more here.
Keywords: diaryl ketones; catalyzed aryl; aryl migratory; migratory decarbonylation ... See more keywords