Chemoselective Reduction of Carbonyl Compounds to Alcohols with Co-Doped Ammonia Borane
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- 英文论文题名：Chemoselective Reduction of Carbonyl Compounds to Alcohols with Co-Doped Ammonia Borane
- 论文作者：PENGMIAN HUANG
- 英文论文作者：PENGMIAN HUANG ; School of Chemistry and Biology Engineering ; Changsha University of Science & Technology
- 年：2016
- 作者机构：School of Chemistry and Biology Engineering,Changsha University of Science & Technology;
- 英文论文关键词：Co-doped ammonia boarne ; Chemoselective reduction ; Carbonyl compounds
- 会议召开时间：2016-09-23
- 会议录名称：中部四省化学化工学会2016年学术年会摘要集
- 语种：英文
- 分类号：O643.36;O621.25
- 学会代码：JXHX
- 会议名称：中部四省化学化工学会2016年学术年会
- 会议地点：中国江西南昌
- 主办单位：中国化学会湖北代表处
- 学会名称：江西省化学化工学会
- 页数：1
- 文件大小：99k
- 原文格式：D
- 会议级别：地方
摘要
Ammonia borane(NH_3BH_3) has been a subject of inten-sive studysince 2000,because of its abnormally high hydrogen content(19.6 wt %).In this study,2 mol % nano-sized Co-based catalysts were introduced to ammonia borane through a "co-precipitation" method.We devoted to explore the chemoselective reduction of carbonyl compounds to alcohols with Co-doped ammonia borane.The reduction of carbonyl compounds by Co-doped ammonia borane was found much faster than by ammonia borane at room temperature.The Co-based catalysts could be reused up to four times with a slight decrease in activity.Therefore,a facile method for the preparation of alcohols by chemo-selective reduction of carbonyl compounds with Co-doped ammonia borane was established.This is the first time to applied Co-doped ammonia borane in synthetic organic chemistry.The chemical state of Co element doped in ammonia borane was identified by electron paramagnetic resonance.Electron paramagnetic resonance characterization revealed that Co element in a partially reduced state.Furthermore,the recyclability of Co-based catalysts was discussed.
Ammonia borane(NH_3BH_3) has been a subject of inten-sive studysince 2000,because of its abnormally high hydrogen content(19.6 wt %).In this study,2 mol % nano-sized Co-based catalysts were introduced to ammonia borane through a "co-precipitation" method.We devoted to explore the chemoselective reduction of carbonyl compounds to alcohols with Co-doped ammonia borane.The reduction of carbonyl compounds by Co-doped ammonia borane was found much faster than by ammonia borane at room temperature.The Co-based catalysts could be reused up to four times with a slight decrease in activity.Therefore,a facile method for the preparation of alcohols by chemo-selective reduction of carbonyl compounds with Co-doped ammonia borane was established.This is the first time to applied Co-doped ammonia borane in synthetic organic chemistry.The chemical state of Co element doped in ammonia borane was identified by electron paramagnetic resonance.Electron paramagnetic resonance characterization revealed that Co element in a partially reduced state.Furthermore,the recyclability of Co-based catalysts was discussed.
Ammonia borane(NH_3BH_3) has been a subject of inten-sive studysince 2000,because of its abnormally high hydrogen content(19.6 wt %).In this study,2 mol % nano-sized Co-based catalysts were introduced to ammonia borane through a "co-precipitation" method.We devoted to explore the chemoselective reduction of carbonyl compounds to alcohols with Co-doped ammonia borane.The reduction of carbonyl compounds by Co-doped ammonia borane was found much faster than by ammonia borane at room temperature.The Co-based catalysts could be reused up to four times with a slight decrease in activity.Therefore,a facile method for the preparation of alcohols by chemo-selective reduction of carbonyl compounds with Co-doped ammonia borane was established.This is the first time to applied Co-doped ammonia borane in synthetic organic chemistry.The chemical state of Co element doped in ammonia borane was identified by electron paramagnetic resonance.Electron paramagnetic resonance characterization revealed that Co element in a partially reduced state.Furthermore,the recyclability of Co-based catalysts was discussed.
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