Analysis of the Orbital and Electrostatic Contributions to the Lone Pair–Aromatic Interaction Using Molecular Rotors
作者:Erik C. Vik、Ping Li、Daniel O. Madukwe、Ishwor Karki、Gabriel S. Tibbetts、Ken D. Shimizu
DOI:10.1021/acs.orglett.1c02878
日期:2021.11.5
The attractive interaction between carbonyl oxygens and the π-face of aromatic surfaces was studied using N-phenylimide molecular rotors. The C═O···Ar interactions could stabilize the transition states but were half the strength of comparable C═O···C═O interactions. The C═O···Ar interaction had a significant electrostatic component but only a small orbital delocalization component.
Anionreceptorsbased on an 8-thiourea substituted quinoline with pentafluorinated (1a) or nonfluorinated (1b) biarylamide groups in the 2-position show similar binding of halide anions with somewhat higher association constants for the more acidic fluorinated derivative. Surprisingly, binding affinities for the halides in the case of the nonfluorinated 1b are similar in nonpolar chloroform or polar
Pentafluorophenylation of aromatics with pentafluorophenyl perfluoro- and polyfluoroalkanesulfonates. A photoinduced electron-transfer cation diradical coupling process
作者:Qing Yun Chen、Zhan Ting Li
DOI:10.1021/jo00061a041
日期:1993.4
Irradiation of pentafluorophenyl perfluoro- and polyfluoroalkanesulfonates 1 with arenes, aromatic ethers, anilines, pyrroles, indoles, and phenols results in the corresponding pentafluorophenylated aromatic compounds. An electron-transfer mechanism is proposed.
Chen, Qing-Yun; Li, Zhan-Ting, Journal of the Chemical Society. Perkin transactions I, 1993, # 14, p. 1705 - 1710
作者:Chen, Qing-Yun、Li, Zhan-Ting
DOI:——
日期:——
SALZE AUS PENTAFLUORPHENYLIMID- ANIONEN UND IHRE VERWENDUNG ALS IONISCHE FLÜSSIGKEITEN