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Mn-CeOx/Ti-PILCs for selective catalytic reduction of NO with NH3 at low temperature

Boxiong Shen1, Hongqing Ma, Yan Yao

  • 1College of Environmental Science and Engineering, Nankai University, 94 Weijin Road, Tianjin 300071, China. shenbx@nankai.edu.cn

Journal of Environmental Sciences (China)
|June 5, 2012
PubMed

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Alkynes can be reduced to trans-alkenes using sodium or lithium in liquid ammonia. The reaction, known as dissolving metal reduction, proceeds with an anti addition of hydrogen across the carbon–carbon triple bond to form the trans product. Since ammonia exists as a gas (bp = −33°C) at room temperature, the reaction is carried out at low temperatures using a mixture of dry ice (sublimes at −78°C) and acetone.
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