Green bromine: in situ generated catalyst for the selective oxidation of alcohols using H2O2 as a benign oxidant
Green bromine: in situ generated catalyst for the selective oxidation of alcohols using H2O2 as a benign oxidant
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DOI：
10.1039/c2ra20073b
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发表时间：
2012-01-01
期刊：
影响因子：
3.9
通讯作者：
Adimurthy, Subbarayappa
中科院分区：
文献类型：
--
作者：
Joshi, Girdhar;Patil, Rajendra D.;Adimurthy, Subbarayappa
研究了在催化量的溴化物-溴酸盐（10mol%）偶联和H2 O2作为良性氧化剂的情况下，将苄醇/仲醇选择性氧化为相应的醛/酮。氧化反应是通过酸（15摩尔%）活化的5：1摩尔比的溴化物-溴酸盐对原位生成的Br-2/BrOH物种。原位生成的Br-2/BrOH物种也支持紫外可见分光光度法研究。在水相条件下，不使用任何过渡金属催化剂，获得了高的醛/酮的选择性和产率。
The selective oxidation of benzylic/secondary alcohols to the corresponding aldehydes/ketones with a catalytic amount of bromide-bromate (10 mol%) couple and H2O2 as a benign oxidant has been developed. The oxidation reactions were achieved through acid (15 mol%) activation of 5 : 1 mole ratios of a bromide-bromate couple for the in situ generation of the Br-2/BrOH species. The In situ generation of the Br-2/BrOH species is also supported by UV-Visible spectrophotometric studies. High selectivity and yields of aldehydes/ketones were obtained without the use of any transition metal catalyst under aqueous conditions.