Journal
JOURNAL OF PHYSICAL CHEMISTRY A
Volume 124, Issue 19, Pages 3815-3824Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpca.0c01060
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Funding
- Natural Science Foundation of Hebei Province [B2019205113, B2019205061]
- Top 100 Innovative Talents Program in Higher Institutions of Hebei Province [SLRC2017041]
- National Natural Science Foundation of China [21973025, 21603152]
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The application of sigma-hole interactions (halogen, chalcogen, and pnictogen bonds) in organocatalysis has attracted more and more interest in recent years. The catalysis mechanism of halogen, chalcogen, and pnictogen bonds in the chloride abstraction from Reissert-type substitution of isoquinoline has been investigated by the density functional theory. Compared with the reaction without catalysts, the reactions catalyzed by the s-hole interactions have lower energy barriers and are more favorable. The formation of the s-hole interaction between the Cl atom and halogen, chalcogen, and pnictogen bond donors facilitates the chloride abstraction reaction by weakening the strength of the C.Cl bond and decreasing the HOMO-LUMO gap of the reactants. The catalytic activity follows the sequence of pnictogen bonds > chalcogen bonds > halogen bonds and shows an increase from period 3 to 5 in the same group, and pnictogen bond donors, especially tris (pentafluorophenyl) antimony, show the best catalysis performance.
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