ChemInform Abstract: Oxidative Bromination of Ketones Using Ammonium Bromide and Oxone®.

Macharla, Arun Kumar; Nappunni, Rohitha Chozhiyath; Reddy, Marri Mahender; Swamy, Peraka; Narender, Nama

doi:10.1002/chin.201217041

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2022

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“…Over recent years, a series of oxidative systems, such as HX/ DMSO [16] , KI/NH 4 NO 3 /H 2 SO 4 /O 2 [17] , I 2 /PTSA/O 2 /DMSO [18] and CuCl 2 /H 2 O [19] , have been disclosed. Particularly, Nama's group successfully realized the a-bromination of various ketones by employed NH 4 Br/Oxone system, Which was proved to be a highly efficient, environmentally safe and economic process [20] .…”

Section: Introductionmentioning

confidence: 99%

Bromine‐Mediated C‐S Bond Formation: Synthesis of Thiazoles from α‐Methylene Ketones by Using Oxone Oxidative System

et al. 2022

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A novel method for the synthesis of various 2,4,5‐trisubstituted thiazoles from methylketones and thiourea/thioacetamide/amidinothiourea using NaBr/Oxone oxidative system has been developed. The three intimately connected advantages of this method, which form a whole, are that the reaction underwent a one‐pot α‐bromination/cyclization process, the use of more common methylene ketones as the raw material rather than α‐halomethylene ketones and a cheap and easily available catalytic amount sodium bromide as the bromine source instead of stoichiometric bromine or NBS.

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