摘要
A Rh(II)/chiral phosphoric acid cocatalyzed four-component reaction of indoles, 3-diazooxindoles, arylamines, and ethyl glyoxylate is developed, offering an extremely efficient strategy for the construction of 3,3-disubstituted 3-indol-3′-yloxindoles with excellent diastereoselectivities and high to excellent enantioselectivities. This transformation is proposed to proceed through a Mannich-type trapping of the zwitterionic intermediate generated from a metal carbene and an indole with an iminoester derived from an arylamine and a glyoxylate.
| 源语言 | 英语 |
|---|---|
| 页(从-至) | 4336-4339 |
| 页数 | 4 |
| 期刊 | Organic Letters |
| 卷 | 17 |
| 期 | 17 |
| DOI | |
| 出版状态 | 已出版 - 25 8月 2015 |
学术指纹
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