期刊
ORGANIC LETTERS
卷 21, 期 16, 页码 6557-6561出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.9b02507
关键词
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资金
- National Natural Science Foundation of China [21502043]
- Special Funds of the Taishan Scholar Program of Shandong Province [tsqn201812047]
- Natural Science Foundation of Shandong Province [ZR2017JL011]
The secondary-amine mediated [3 + 2] annulation of azonaphthalenes with aldehydes and ketones is described for the first time, which provides an alternative protocol for the synthesis of indole derivatives. It features a cheap and readily available catalyst, a broad scope of reactants, very mild reaction conditions, and high efficiency. Significantly different from the transition-metal-mediated processes, the enamine activation represents the first organic base-catalytic protocol for indole synthesis.
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