期刊
RSC ADVANCES
卷 4, 期 38, 页码 19602-19612出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ra02583k
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资金
- Agence Nationale de la Recherche
- Institut Universitaire de France
- Rennes Metropole
2-Substituted quinolines were synthesized, and their deproto-metallation using the bases prepared by mixing LiTMP with either ZnCl2 center dot TMEDA (1/3 equiv.) or CuCl (1/2 equiv.) was studied. With phenyl and 2-naphthyl substituents, the reaction occurred at the 8 position of the quinoline ring, affording the corresponding iodo derivatives or 2-chlorophenyl ketones using the lithium-zinc or the lithium-copper combination, respectively. With a 4-anisyl substituent, a dideprotonation at the 8 and 3' position was noted using the lithium-zinc base. With 3-pyridyl, 2-furyl and 2-thienyl substituents, the reaction took place on the substituent, at a position adjacent to its heteroatom. 2-Chlorophenyl-2-phenyl-8-quinolyl ketone could be cyclized under palladium catalysis. The experimental results were analyzed with the help of the CH acidities of the substrates, determined in THF solution using the DFT B3LYP method.
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