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Your search keyword '"Marino A. Campo"' showing total 3 results
Start Over Author "Marino A. Campo" Journal journal of the american chemical society
3 results on '"Marino A. Campo"'

1. Aryl to Aryl Palladium Migration in the Heck and Suzuki Coupling of o-Halobiaryls

Author

Abdellatif Ibdah, Haiming Zhang, Marino A. Campo, Jian Zhao, Tuanli Yao, Qinhua Huang, William S. Jenks, Ryan D. McCulla, and Richard C. Larock

Subjects
Reaction conditions, Chemistry, Aryl, chemistry.chemical_element, General Medicine, General Chemistry, Biochemistry, Catalysis, chemistry.chemical_compound, Colloid and Surface Chemistry, Suzuki reaction, Heck reaction, Organopalladium, Polymer chemistry, Organic chemistry, Ethyl acrylate, Palladium
Abstract

A novel 1,4-palladium migration between the o- and o'-positions of biaryls has been observed in organopalladium intermediates derived from o-halobiaryls. The organopalladium intermediates generated by this migration have been trapped either by a Heck reaction employing ethyl acrylate or by Suzuki cross-coupling using arylboronic acids. This palladium migration can be activated or deactivated by choosing the appropriate reaction conditions. Chemical and computational evidence supports the presence of an equilibrium that correlates with the C-H acidity of the available arene positions.

Published
2007
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2. Pd-catalyzed alkyl to aryl migration and cyclization: an efficient synthesis of fused polycycles via multiple C-H activation

Author

Marino A. Campo, Alessia Fazio, Richard C. Larock, Guangxiu Dai, and Qinhua Huang

Subjects
inorganic chemicals, Intramolecular reaction, Stereochemistry, chemistry.chemical_element, Ring (chemistry), Biochemistry, Heterocyclic Compounds, 4 or More Rings, Catalysis, chemistry.chemical_compound, Colloid and Surface Chemistry, Heck reaction, Polycyclic Compounds, Alkyl, chemistry.chemical_classification, Molecular Structure, Aryl, Intermolecular force, General Chemistry, General Medicine, Combinatorial chemistry, chemistry, Cyclization, Intramolecular force, Palladium
Abstract

A novel palladium migration methodology for the synthesis of complex fused polycycles has been developed. This process involves 1,4-palladium alkyl to aryl migrations via through-space C−H activation, followed by intramolecular arylation or an intermolecular Heck reaction providing a very efficient way to synthesize fused ring systems.

Published
2004

3. Novel 1,4-palladium migration in organopalladium intermediates derived from o-iodobiaryls

Author

Richard C. Larock and Marino A. Campo

Subjects
Reaction conditions, Reaction mechanism, Biphenyl derivatives, chemistry.chemical_element, General Chemistry, Biochemistry, Palladium compound, Combinatorial chemistry, Catalysis, chemistry.chemical_compound, Colloid and Surface Chemistry, chemistry, Heck reaction, Organopalladium, Organic chemistry, Palladium
Abstract

A novel 1,4-palladium migration in organopalladium intermediates derived from o-iodobiaryls has been observed under modified Heck reaction conditions. This migration process can be switched “on” or “off” by simply choosing the appropriate reaction conditions.

Published
2002

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