A H<sub>2</sub>O<sub>2</sub>/HBr system – several directions but one choice: oxidation–bromination of secondary alcohols into mono- or dibromo ketones
作者:Gennady I. Nikishin、Nadezhda I. Kapustina、Liubov L. Sokova、Oleg V. Bityukov、Alexander O. Terent'ev
DOI:10.1039/c8ra04885a
日期:——
allows synthesis of α-monobromo ketones and α,α′-dibromo ketones from aliphatic and secondary benzylicalcohols with yields up to 91%. It is possible to selectively direct the process toward the formation of mono- or dibromo ketones by varying the amount of hydrogen peroxide and hydrobromic acid. The convenience of application, simple equipment, multifaceted reactivity, and compliance with green chemistry
在这项工作中,我们发现H 2 O 2 –HBr(aq)系统可以从脂肪族和仲苄醇合成α-一溴酮和α,α'-二溴酮,收率高达91%。通过改变过氧化氢和氢溴酸的量,可以选择性地引导该过程形成单溴酮或二溴酮。应用方便、设备简单、反应活性多方面以及符合绿色化学原理,使得H 2 O 2 –HBr(aq)系统的应用在实验室和工业界非常有吸引力。尽管已知酮具有通过Baeyer-Villiger反应氧化或在过氧化氢和布朗斯台德酸存在下形成具有O-O部分的化合物过氧化的已知特性,但所提出的氧化-溴化过程是选择性的。
α-Halo Ketones. V. The Preparation, Metathesis and Rearrangement of Certain α-Bromoketones
作者:Abraham A. Sacks、J. G. Aston
DOI:10.1021/ja01152a103
日期:1951.8
Villieras, J.; Kirschleger, B.; Tarhouni, R., Bulletin de la Societe Chimique de France, 1986, # 3, p. 470 - 478
作者:Villieras, J.、Kirschleger, B.、Tarhouni, R.、Rambaud, M.
DOI:——
日期:——
Regiospecific Synthesis of α-Haloketones using α-Haloalkyllithium Reagents