Development of a practical one-pot synthesis of indigo from indole

Yamamoto Y.; Inoue Y.; Takaki U.; Suzuki H.

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Development of a practical one-pot synthesis of indigo from indole

机译：开发一种实用的由吲哚一锅合成靛蓝的方法

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A novel and highly practical one-pot synthesis of indigo from indole via 3-position selective oxidation and dimerization of the indole framework was developed. Using 0.1 mol% of molybdenum complex and 2.2 equivalents of cumene hydroperoxide in tert-butyl alcohol, the reaction was complete in 7 h and pure indigo was obtained in 81% yield as a deep-blue solid just by filtration. The described one-step method renders the pure indigo readily available on a large scale using only inexpensive raw materials.

机译：通过3-位选择性氧化和吲哚骨架的二聚，从吲哚合成了一种新颖且实用性强的靛蓝。用0.1摩尔％的钼配合物和2.2当量的异丙基氢过氧化物在叔丁醇中的溶液，在7小时内反应完成，仅通过过滤就获得了深蓝色固体状的纯靛蓝，收率为81％。所描述的一步方法使得仅使用便宜的原料就可以容易地大规模获得纯靛蓝。

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《Bulletin of the Chemical Society of Japan》 |2011年第1期|共8页
作者
Yamamoto Y.; Inoue Y.; Takaki U.; Suzuki H.;
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正文语种 eng
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1. Development of a practical one-pot synthesis of indigo from indole [J] . Yamamoto Y., Inoue Y., Takaki U., Bulletin of the Chemical Society of Japan . 2011,第1期

机译：开发一种实用的由吲哚一锅合成靛蓝的方法
2. A practical mild, one-pot, regiospecific synthesis of 2,3-disubstituted indoles via consecutive Sonogashira and Cacchi reactions [J] . Lu BZ, Zhao WY, Wei HX, Organic letters . 2006,第15期

机译：通过连续的Sonogashira和Cacchi反应进行实用的轻度一锅区域特异性合成2,3-二取代的吲哚
3. A practical mild, one-pot, regiospecific synthesis of 2,3-disubstituted indoles via consecutive Sonogashira and Cacchi reactions [J] . Lu BZ, Zhao WY, Wei HX, Organic letters . 2006,第15期

机译：通过连续的Sonogashira和Cacchi反应进行实用的轻度一锅区域特异性合成2,3-二取代的吲哚
4. One-Pot Synthesis of Indole Derivatives Using Homogeneous and Polymer-Supported Heterogeneous Palladium Catalysts [C] . Ken Tsutsumi, Hayato Sakai, Tsumoru Morimoto Symposium on Organometallic Chemistry . 2006

机译：使用均相和聚合物负载的非均相钯催化剂单罐合成吲哚衍生物
5. New developments toward the synthesis of heterocycles and applications in green chemistry. I. A simple and essentially one-pot synthesis of N-aminated heterocycles using phase transfer catalyst (Aliquat-336). II. Synthesis of pharmaceutically important pyrrole derivatives. III. Applications in green chemistry: Surfactant-mediated environmentally friendly cleavage of aromatic esters and trans-esterification under solvent-free neutral conditions . [D] . Patel, Nitinchandra. 2005

机译：杂环合成的新进展及其在绿色化学中的应用。 I.使用相转移催化剂（Aliquat-336）简单且基本上一锅合成N-胺化的杂环。二。药学上重要的吡咯衍生物的合成。三，在绿色化学中的应用：在无溶剂的中性条件下，表面活性剂介导的环境友好的芳族酯裂解和酯交换反应。
6. A simple one-pot 2-step N-1-alkylation of indoles with α-iminoketones toward the expeditious 3-step synthesis of N-1-quinoxaline-indoles [O] . Guillermo Martinez-Ariza, Muhammad Ayaz, Christopher Hulme -1

机译：简单的一锅二步吲哚与α-亚氨基酮的N-1烷基化反应可快速实现N-1-喹喔啉-吲哚的三步合成
7. A Practical Mild, One-Pot, Regiospecific Synthesis of 2, 3-Disubstituted Indoles via Consecutive Sonogashira and Cacchi Reactions [O] . -1

机译：通过连续的Sonoghashira和Caccli反应，一种实际的温和，一锅，细胞再现合成2,3-二取代的吲哚

Development of a practical one-pot synthesis of indigo from indole

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