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cauway bay>闪灯A Mild and General Larock Indolization Protocol for
the Preparation of Unnatural Tryptophans
期刊名称: Organic Letters
digin作者: Chuang, Kangway V.,Kieffer, Madeleine E.,Reisman, Sarah E.
reliable名词data是什么意思年份: 2016年
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期号: 第18期
摘要:A mild and general protocol for the Pd(0)-catalyzed heteroannulation of
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o-bromoanilines and alkynes is described. Application of a Pd(0)/P(tBu)3 catalyst system enables the efficient coupling of o-bromoanilines at 60 °C, mitigating deleterious side reactions and enabling access to a broad range of uful unnatural tryptophans. The utility of this new protocol is demonstrated in the highly convergent total synthesis of the bisindole natural product ()-aspergilazine A.
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