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Synthesis of Spirofurooxindoles via Phenyliodine(III) Bis(trifluoroacetate) (PIFA)-Mediated Cascade Oxidative C-O and C-C Bond Formation
被引:22
作者:
Sun, Desong
[1
]
Zhao, Xiaoyuan
[1
]
Zhang, Bobo
[1
]
Cong, Ying
[1
]
Wan, Xintong
[1
]
Bao, Mingmai
[1
]
Zhao, Xue
[1
]
Li, Bing
[1
]
Zhang-Negrerie, Daisy
[1
]
Du, Yunfei
[1
,2
]
机构:
[1] Tianjin Univ, Sch Pharmaceut Sci & Technol, Tianjin Key Lab Modern Drug Delivery & High Effic, Tianjin 300072, Peoples R China
[2] Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300072, Peoples R China
基金:
中国国家自然科学基金;
关键词:
spirofurooxindole;
cascade reaction;
hypervalent iodine oxidant;
metal-free conditions;
spirocyclization;
N-HETEROCYCLIC CARBENE;
SPIRO GAMMA-BUTYROLACTONES;
HYPERVALENT IODINE;
STEREOSELECTIVE-SYNTHESIS;
SPIROOXINDOLE LACTONES;
3+2 ANNULATION;
DERIVATIVES;
ACID;
CYCLIZATION;
ISATINS;
D O I:
10.1002/adsc.201701635
中图分类号:
O69 [应用化学];
学科分类号:
081704 ;
摘要:
Upon treatment with solely a hypervalent iodine reagent of phenyliodine(III) bis(tri-fluoroacetate) (PIFA), 3-(2-hydroxyphenyl)-3-oxo-N-phenyl propanamides and a series of its derivatives were conveniently converted to a class of undocumented spirofurooxindoles under mild conditions. Control experiments provided evidence that this spirocyclization process encompassed a cascade oxidative reactions involving the formation of a C-O bond prior to that of C-C bond.
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页码:1634 / 1638
页数:5
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