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An environmentally benign synthesis of organic ammonium tribromides (OATB) and bromination of selected organic substrates by tetrabutylammonium tribromide (TBATB)

✍ Scribed by Mihir K. Chaudhuri; Abu T. Khan; Bhisma K. Patel; Deepa Dey; Wancydora Kharmawophlang; T.R. Lakshmiprabha; Gagan C. Mandal

Book ID: 104260070
Publisher: Elsevier Science
Year: 1998
Tongue: French
Weight: 237 KB
Volume: 39
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(98)01818-8

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✦ Synopsis

Stable crystalline organic ammonium tribromides (OATB), like Me4NBr3, Et4NBr3, Bu4NBr3, cetyltrimethylammonium tribromide, PyHBr3, can be readily synthesised from the reaction of the corresponding bromides with V205 and aqueous H202. Typically, TBATB, Bu4NBr3, brominates a variety of organic substrates rather easily under mild conditions. An activated aromatic ring is selectively brominated in the presence of an olefinic double bond.

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