Yayınlanmış 1 Ocak 2012 | Sürüm v1
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Bromination of 4,6-dimethoxyindoles

  • 1. Univ New S Wales, Sch Chem, Sydney, NSW 2052, Australia

Açıklama

The bromination of activated 4,6-dimethoxyindoles can be carried out effectively provided that an electron-withdrawing group is also present. Thus the range of products includes 2-bromo-7-formyl or 2-bromo-7-acetylindoles 13a-c and 16, 7-bromo-2-acetylindole 21, 2,5-dibromo-7-acetylindole 17, 2,5-dibromo-N-sulfonylindole 27, and 2,7-dibromo-N-acetylindole 24. Acetyl and sulfonyl protecting groups on nitrogen can be removed to give 2-bromoindoles 28a-b, 2,5-dibromoindole 29, and 2,7-dibromoindole 4. (C) 2012 Elsevier Ltd. All rights reserved.

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