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Synthesis of dibromo ketones by the reaction of the environmentally benign H2O2-HBr system with oximes

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Terent’ev A., Krylov I., Vil’ V., Pastukhova Z., Fastov S., Nikishin G.
Open Chemistry
|
2012
|
vol. 10
|
issue 2
360-367
EN
It was found that oximes undergo deoximation in the presence of the H2O2aq-HBraq system to form ketones and bromo ketones. This reaction provided the basis for the synthesis of dibromo ketones in yields varying from 40% to 94%. This method is environmentally friendly, sustainable, and easy to perform. The results of this investigation extend the potential of the use of oximes for the protection of carbonyl group, thus offering the ability to perform not only conventional deoximation but also the subsequent bromination of ketones. The reaction is easily scaled up and dibromo ketones can be prepared in gram amounts. [...]
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