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作 者:ZHANG Feng LI Ya-zhuo WANG Yun-xin GAO Da-wei SUN Ji-kui ZHANG Yu-min ZHAO Tian-qi CHEN Xiao-dong
机构地区:[1]College of Chemistry, Jilin University, Changchun 130012, P. R. China [2]Experimental Center of Testing Science, Jilin University, Changchun 130021, P. R. China
出 处:《Chemical Research in Chinese Universities》2007年第4期486-488,共3页高等学校化学研究(英文版)
基 金:Supported by the Natural Science Foundation of Jilin Province,China(No.1999010540).
摘 要:Compounds having an active hydroxy group, such as, acyloins can be easily alkylated by alkyl halides in the presence of a phase transfer catalyst (PTC). The reaction is usually carried out in the presence of con-centrated aqueous sodium or potassium hydroxide and a phase transfer catalyst, such as, quaternary ammonium salts^[1-3] species, miscible which facilitate the interphase transfer of making reactions between reagents in two im-phases possible. The reaction involves a series of equilibrium and mass-transfer steps.Compounds having an active hydroxy group, such as, acyloins can be easily alkylated by alkyl halides in the presence of a phase transfer catalyst (PTC). The reaction is usually carried out in the presence of con-centrated aqueous sodium or potassium hydroxide and a phase transfer catalyst, such as, quaternary ammonium salts^[1-3] species, miscible which facilitate the interphase transfer of making reactions between reagents in two im-phases possible. The reaction involves a series of equilibrium and mass-transfer steps.
关 键 词:ULTRASOUND Phase transfer catalysis Furoin O-ALKYLATION
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