A non-cryogenic method for the preparation of 2-(indolyl) borates, silanes, and silanols

被引:54
作者
Vazquez, E [1 ]
Davies, IW [1 ]
Payack, JF [1 ]
机构
[1] Merck & Co Inc, Dept Proc Res, Rahway, NJ 07065 USA
关键词
D O I
10.1021/jo026087j
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
2-Indolyl borates are prepared via addition of LDA to a mixture of N-Boc-indole and triisopropyl borate at 0-5 degreesC. Following acidic hydrolysis, the boronic acids are isolated by crystallization in good to excellent yield (73-99%). The method is quite general, tolerating a wide range of functional groups, and also provides access to 2-silyl derivatives (80-91%).
引用
收藏
页码:7551 / 7552
页数:2
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