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- The controlling-velocity step for the enantioselective reduction is the decomposition of the B-O-B-N 4-numbered ring. 该不对称催化还原反应的控制步骤是催化剂-烷氧基硼烷加合物的B-O-B-N四元环的离解。
- By employing suitable chiral phosphorous ligands, high enantioselective reductions of the C=C double bond, C=O double bond in prochiral substrates have been achieved. 采用合适的手性膦配体,已实现了对上述前手性底物中碳-碳双键、羰基的高对映选择性还原。
- Keywords imine;catalysts;chiral ligands;enantioselective reduction; 亚胺;催化剂;手性配体;对映选择性还原;
- Keywords chiral amino alcohol;borane;enantioselective reduction; 手性氨基醇;硼烷;对映选择还原;
- Theoretical Study on the Enantioselective Reduction of Phenyl Methyl Ketone 苯甲酮不对称还原反应的理论研究
- Keywords chiral 1;3;2-oxazaborolidine;enantioselective reduction;prochiral ketone; 手性1;3;2-氧氮硼五环;对映选择性还原;前手性酮;
- The reduction of unemployment should be paramount. 降低失业率应是头等大事。
- enantioselective reduction 不对称还原
- The forthcoming talk hold out the hope of real arms reduction. 即将举行的会谈给实现真正的裁军带来了希望。
- Queue forme at the ticket office when the news of the fare reduction get out. 票价下调的消息一传出,售票处前就排起了队。
- A reduction in pace, force, or intensity; a slowdown. 减慢,放松速度、力量或强度减弱; 放慢
- What reduction will you make on this article? 这个东西你要减价多少?
- There is no room for any reduction in price. 价格毫无再减的余地了。
- The talks resulted in reducing the number of missiles/missile reduction. 谈判结果削减了导弹数量。
- Negotiating a reduction in nuclear arms is a long and arduous undertaking. 有关削减核武器的谈判是一项漫长而艰苦的工作
- Reduction in the purchasing value of money. 贬值钱的购买价值的降低
- A reduction in value, amount, or degree. 减低价值、程度或数量的减少
- A reduction of the entered value of an asset. 降低,划减资产帐面价值的降低
- We can not do more than a 2% reduction. 我们只能降价百分之二,不能再多了。
- We have to ask you for a 10% reduction. 我们必须要求你们在价格上降价10%25。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries