期刊
TETRAHEDRON LETTERS
卷 54, 期 33, 页码 4373-4376出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2013.05.139
关键词
Green chemistry; Benzo[b]thiophenes; Electrophilic cyclization; Iodocyclization; Bromocyclization; Chlorocyclization
资金
- Bard Summer Research Institute
- National Science Foundation Major Research Instrumentation Award [1039659]
- Division Of Chemistry
- Direct For Mathematical & Physical Scien [1039659] Funding Source: National Science Foundation
We have developed a greener process for the synthesis of 2,3-disubstituted benzo[b]thiophenes using electrophilic cyclization as a key step. Our method not only employs an environmentally friendly solvent ethanol, but also utilizes safe and inexpensive inorganic reagents to furnish the desired products in high yields under mild reaction conditions. In addition to iodo- and bromocyclization, chlorocylization was also successfully accomplished. (c) 2013 Elsevier Ltd. All rights reserved.
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