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Catalytic Enantioselective Protonation/Nucleophilic Addition of Diazoesters with Chiral Oxazaborolidinium Ion Activated Carboxylic Acids
被引:20
作者:
Kang, Ki-Tae
[1
,2
]
Kim, Seung Tae
[2
]
Hwang, Geum-Sook
[1
]
Ryu, Do Hyun
[2
]
机构:
[1] Western Seoul Ctr, Korea Basic Sci Inst, 150,Bugahyeon ro, Seoul 03759, South Korea
[2] Sungkyunkwan Univ, Dept Chem, 300,Cheoncheon, Suwon 16419, South Korea
基金:
新加坡国家研究基金会;
关键词:
asymmetric catalysis;
boron;
Bronsted acid;
diazo compounds;
reaction mechanisms;
ASYMMETRIC ROSKAMP REACTION;
H INSERTION REACTIONS;
TROPIC ACID;
KINETIC RESOLUTION;
ETHYL-ESTER;
PROTONATION;
BOND;
DERIVATIVES;
CYCLOADDITIONS;
MIGRATION;
D O I:
10.1002/anie.201612655
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
A new chiral Bronsted acid derived from carboxylic acid and a chiral oxazaborolidinium ion (COBI), as an activator, is introduced. This acid was successfully applied as a catalyst for the highly enantioselective protonation/nucleophilic addition of diazoesters with carboxylic acids.
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页码:3977 / 3981
页数:5
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