borane

常見例句

• This paper indroduced the synthesis methed of norfloxacin by borane compound.The product had high quality and good yield(62 %).
  介紹了硼螯化合物合成諾氟沙星的方法,收率高(總收率62%25以上)。
• Asymmetric borane reduction of prochiral ketones is a good process to the synthesis of enantiomerically enriched secondary alcohols.
  硼烷對前手性酮的不對稱還原是合成手性仲醇的重要方法。
• The asymmetric reduction of ketosulfone with borane catalyzed by oxazaborolidine is computed by means of the semi-empirical MNDO method.
  對惡唑硼烷催化前手性酮砜不對稱還原反應(yīng)進行了半經(jīng)驗MNDO研究。
• The borane modified by chiral oxazoborolidines enantioselectively reduced aliphatic and aromatic ketones to yield sec-alcohols with 100% yield and medium to high optical yields.
  硼烷-手性(口惡)唑硼烷-還原體系能將脂肪酮和芳香酮還原為仲醇,化學(xué)還原收率町達(dá)100%25,光學(xué)收率也比較高。
• Using 10 as the catalyst, six prochiral ketones were reduced enantioselectively with borane and the results were compared with those with 1,1- diphenylprolinol as catalys.
  用10催化6種前手性酮的不對稱硼烷還原反應(yīng),其結(jié)果與(S)-二苯基脯氨醇催化的同一反應(yīng)的結(jié)果進行了對比。
• Compared with the pure pitches, pyridine borane modified pitches had higher softening points, carbon yields and PI fraction content at the same reaction conditions.
  在同一反應(yīng)條件下,體系有無吡啶硼烷,所得結(jié)果有顯著差別。吡啶硼烷改性系列的軟化點、殘?zhí)恐导癙I組份的含量均明顯高于純?yōu)r青系列。
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