共 54 条
Tetraalkylammonium Salts as Hydrogen-Bonding Catalysts
被引:74
作者:
Shirakawa, Seiji
[1
]
Liu, Shiyao
[1
]
Kaneko, Shiho
[1
]
Kumatabara, Yusuke
[1
]
Fukuda, Airi
[1
]
Omagari, Yumi
[1
]
Maruoka, Keiji
[2
]
机构:
[1] Nagasaki Univ, Grad Sch Fisheries & Environm Sci, Dept Environm Sci, Nagasaki 8528521, Japan
[2] Kyoto Univ, Grad Sch Sci, Dept Chem, Sakyo Ku, Kyoto 6068502, Japan
关键词:
acidity;
hydrogen bonds;
hydrogen-bonding catalysts;
organocatalysis;
tetraalkylammonium salts;
ANION-BINDING CATALYSIS;
PHASE-TRANSFER REACTIONS;
ASYMMETRIC CATALYSIS;
CARBONYL-COMPOUNDS;
ORGANOCATALYSIS;
DEAROMATIZATION;
POLYMERIZATION;
ENOLATE;
DONORS;
D O I:
10.1002/anie.201508659
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
Although the hydrogen-bonding ability of the a hydrogen atoms on tetraalkylammonium salts is often discussed with respect to phase-transfer catalysts, catalysis that utilizes the hydrogen-bond-donor properties of tetraalkylammonium salts remains unknown. Herein, we demonstrate hydrogen-bonding catalysis with newly designed tetraalkylammonium salt catalysts in Mannich-type reactions. The structure and the hydrogen-bonding ability of the new ammonium salts were investigated by X-ray diffraction analysis and NMR titration studies.
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页码:15767 / 15770
页数:4
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