Catalytic role of nickel in the decarbonylative addition of phthalimides to alkynes
Type
ArticleKAUST Department
Chemical Science ProgramKAUST Catalysis Center (KCC)
Physical Science and Engineering (PSE) Division
Date
2013-10-30Online Publication Date
2013-10-30Print Publication Date
2013-11-11Permanent link to this record
http://hdl.handle.net/10754/563083
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Density functional theory calculations have been used to investigate the catalytic role of nickel(0) in the decarbonylative addition of phthalimides to alkynes. According to Kurahashi et al. the plausible reaction mechanism involves a nucleophilic attack of nickel at an imide group, giving a six-membered metallacycle, followed by a decarbonylation and insertion of an alkyne leading to a seven-membered metallacycle. Finally a reductive elimination process produces the desired product and regenerates the nickel(0) catalyst. In this paper, we present a full description of the complete reaction pathway along with possible alternative pathways, which are predicted to display higher upper barriers. Our computational results substantially confirm the proposed mechanism, offering a detailed geometrical and energetical understanding of all the elementary steps. © 2013 American Chemical Society.Citation
Poater, A., Vummaleti, S. V. C., & Cavallo, L. (2013). Catalytic Role of Nickel in the Decarbonylative Addition of Phthalimides to Alkynes. Organometallics, 32(21), 6330–6336. doi:10.1021/om400693vSponsors
A.P. and L.C. thank the HPC team of Enea for using the ENEA-GRID and the HPC facilities CRESCO in Portici (Italy) for access to remarkable computational resources. A.P. thanks the Spanish MICINN for a Ramon y Cajal contract (RYC-2009-05226), European Commission for a Career Integration Grant (CIG09-GA-2011-293900), and Generalitat de Catalunya (2012BE100824).Publisher
American Chemical Society (ACS)Journal
Organometallicsae974a485f413a2113503eed53cd6c53
10.1021/om400693v