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Superacid-catalyzed tandem Meyer-Schuster rearrangement/intramolecular hydroamination of o-anilinopropargyl alcohols for the synthesis of 2,3-dihydro-4(1H)-quinolones
被引:9
|作者:
Sun, Guofeng
[1
]
Cheng, Fengkai
[1
]
Tao, Ruiheng
[1
]
Sun, Yuxing
[1
]
Pan, Jinpeng
[1
]
Zhu, Yaohua
[1
]
Wang, Zhonghua
[1
]
Wu, Fanhong
[1
]
Yin, Yan
[1
,2
]
机构:
[1] Shanghai Inst Technol, Sch Chem & Environm Engn, 100 Hai Quan Rd, Shanghai 201418, Peoples R China
[2] Chinese Acad Sci, Shanghai Inst Organ Chem, Key Lab Organofluorine Chem, Shanghai, Peoples R China
基金:
中国国家自然科学基金;
关键词:
2;
3-Dihydro-4(1H)-quinolones;
hydroamination reaction;
Meyer-Schuster rearrangement;
o-anilinopropargyl alcohols;
superacid;
INTRAMOLECULAR HYDROAMINATION;
TETRAHYDROQUINOLINES;
REARRANGEMENT;
SULFONAMIDES;
DERIVATIVES;
CYCLIZATION;
SERIES;
D O I:
10.1080/00397911.2016.1196293
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
A TfOH-catalyzed synthesis of 2,3-dihydro-4(1H)-quinolones from o-anilinopropargyl alcohols was developed. Studies of N-protecting groups and substituents in phenyl rings showed that diverse groups could be applied. By controlling the catalyst loading, o-anilinopropargyl alcohols underwent the expected transformation smoothly to produce N-protected or N-deprotected 2,3-dihydro-4 (1H)-quinolones in good yields. This transformation probably involved a tandem Meyer-Schuster rearrangement/intramolecular hydroamination reaction process. [GRAPHICS] .
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页码:1249 / 1256
页数:8
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